Bloodborne viral and sexually transmissible infections in Aboriginal and Torres Strait Islander people:

Transcription

1 Bloodborne viral and sexually transmissible infections in Aboriginal and Torres Strait Islander people: Annual Surveillance Report 215 HIV HCV HBV STI

2 The Kirby Institute for infection and immunity in society 215 ISSN This publication and associated data is available at Internet address Suggested citation: The Kirby Institute. Bloodborne viral and sexually transmissible infections in Aboriginal and Torres Strait Islander people: Surveillance and Evaluation Report 215. The Kirby Institute, UNSW Australia Sydney NSW 252 The Kirby Institute for infection and immunity in society UNSW Australia, Sydney NSW 252 Telephone: Facsimile: International prefix: recept@kirby.unsw.edu.au

3 Prepared by: Dr Skye McGregor and Dr Hamish McManus Edited by: Dr Marlene Kong, Associate Professor Rebecca Guy Other contributors: Mr Michael Doyle, Associate Professor James Ward, Dr Jenny Iversen, Ms Jane Costello, Ms Megan Tapia Kirby Institute, UNSW Australia Sydney, Australia in collaboration with Australian networks in surveillance for HIV, viral hepatitis and sexually transmissible infections The Kirby Institute is affiliated with the Faculty of Medicine, The University of New South Wales. It is funded by the Australian Government Department of Health to conduct national surveillance and epidemiological analyses to support the implementation of the five National Strategies related to HIV, hepatitis B, hepatitis C, sexually transmissible infections, and the response to these infections in the Aboriginal and Torres Strait Islander population. The Kirby Institute is also a research associate of the Australian Institute of Health and Welfare.

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5 Contents Preface 1 Acknowledgements 2 Medical and epidemiological terms 6 Summary 1 Figures 14 Tables 17 Main Findings 18 HIV HIV infection 18 New diagnoses 19 Testing 25 Condom use 26 HCV HBV Hepatitis C Infection 28 Newly diagnosed hepatitis C infections 29 Newly acquired hepatitis C infection 33 Injecting drug use 37 Testing 38 Treatment 39 Hepatitis B 4 Newly diagnosed hepatitis B infections 41 Newly acquired hepatitis B infection 46 Vaccination 49 STIs Sexually transmissible infections 5 Chlamydia 5 Gonorrhoea 56 Syphilis 61 Infectious syphilis 61 Bacterial STIs reported in persons aged less than 16 years 67 Donovanosis 67 Methodological Notes 68 References 72

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7 Preface This report provides information on the occurrence of bloodborne viruses (BBVS) and sexually transmissible infections (STIs) among the Aboriginal and Torres Strait Islander population in Australia. The report is published by the Kirby Institute for the purposes of stimulating and supporting discussion on ways to minimise the risk of transmission of these infections as well as the personal and social consequences within Aboriginal and Torres Strait Islander communities. This report is published annually as an accompanying document to the HIV, viral hepatitis and sexually transmissible infections in Australia Annual Surveillance Report and is overseen by the National Aboriginal Community Controlled Health Organisation (NACCHO) and the Annual Surveillance Report Advisory Committee. The report is produced in a format that is intended to be accessible to a wide range of health service providers and consumers, and particularly Aboriginal and Torres Strait Islander health services and communities. It is available in hard copy and at Data tables are also available online at Unless specifically stated otherwise, all data provided in this report are to the end of 214, as reported by 31 March 215. Data in the report are provisional and subject to future revision. The report could not have been prepared without the collaboration of a large number of organisations involved in health services throughout Australia. The ongoing contribution of these organisations, listed from page 2 onwards, is gratefully acknowledged. Bloodborne viral and sexually transmissible infections in Aboriginal and Torres Strait Islander People: Surveillance and Evaluation Report 215 1

8 Acknowledgements Groups and committees involved in the development of the Surveillance Report, as well as the individuals and organisations that provided data for inclusion in this report are listed below. The Aboriginal and Torres Strait Islander report was initially developed by Associate Professor James Ward. Annual Surveillance Report 215 Advisory Committee Ms Amy Bright, Australian Government Department of Health, Canberra, ACT Ms Helen Tyrrell, Hepatitis Australia, Canberra, ACT Ms Anna Roberts and Mr Scott McGill, Australasian Society for HIV Medicine, Sydney, NSW Mr Aaron Cogle and Ms Jo Watson, National Association of People with HIV Australia, Sydney, NSW Dr Limin Mao, Centre for Social Research in Health, UNSW Australia, Sydney, NSW Dr Russell Waddell, Australasian Chapter of Sexual Health Medicine, Sydney, NSW Mr Simon Donohoe, Australian Federation of AIDS Organisations, Sydney, NSW Associate Professor Benjamin Cowie, WHO Regional Reference Laboratory for Hepatitis B, Victorian Infectious Diseases Reference Laboratory, The Doherty Institute, Melbourne, VIC Associate Professor Rebecca Guy (Chair), Professor Basil Donovan, Professor Lisa Maher, Associate Professor David Wilson, Dr Marlene Kong, Dr Iryna Zablotska Manos, Dr Jenny Iversen, Dr Skye McGregor, Dr Hamish McManus, Ms Jane Costello, The Kirby Institute, UNSW Australia, Sydney, NSW Collaboration of Australian Needle and Syringe Programs Directions ACT, Canberra; ACT ACON Hunter, Newcastle; Central Coast NSP Services, Gosford and Long Jetty; First Step Program, Port Kembla Hospital, Warrawong; Hunter Harm Reduction Services, Newcastle; Kirketon Road Centre and Clinic 18, Kings Cross; Mid North Coast Harm Reduction, Coffs Harbour; Murrumbidgee Harm Reduction, Albury and Wagga Wagga; NSW Users and AIDS Association (NUAA), Surry Hills; Northern NSW Harm Reduction, Ballina, Byron Bay, Grafton, Lismore, Murwillumbah, Nimbin, and Tweed Heads; Redfern Harm Minimisation Program, Redfern; Central Access Service, Kogarah and Sutherland; South Court Primary Care NSP, Nepean; Western Sydney HIV/Hepatitis C Prevention Service, Blacktown, Mt Druitt and Parramatta; NSW Northern Territory AIDS and Hepatitis C Council, Alice Springs, Darwin and Palmerston; NT Biala Community Alcohol and Drug Services, Brisbane; Cairns ATODS NSP, Cairns; Queensland Injectors Health Network (QuIHN), Brisbane, Gold Coast and Sunshine Coast; Kobi House, Toowoomba; West Moreton Sexual Health Service, Ipswich; Townsville ATODS NSP, Townsville; QLD Drug and Alcohol Services South Australia, Adelaide; Hindmarsh Centre, Hindmarsh; Nunkuwarrin Yunti Community Health Centre, Adelaide; Street Link Youth Health Service, Adelaide; South Australia Voice for Intravenous Education (SAVIVE), Keswick; Parks Community Health Service, Adelaide; Port Adelaide Community Health Service, Port Adelaide; Noarlunga Community Health Service, Adelaide; Northern Metropolitan Community Health Service NSP and Shopfront, Salisbury; SA Anglicare NSP Service, Hobart and Glenorchy; Clarence Community Health Centre, Clarence; Devonport Community Health Centre, Devonport; Salvation Army Launceston, Launceston; TAS Barwon Health Drug and Alcohol Services, Geelong; Health Information Exchange, St Kilda; Health Works, Footscray and Braybrook; Inner Space, Collingwood; North Richmond NSP, North Richmond; Southern Hepatitis/ HIV/AIDS Resource and Prevention Service (SHARPS), Melbourne; VIC. WA AIDS Council Mobile Exchange, Perth; Western Australia Substance Users Association (WASUA), Perth and South Coast; WA. St Vincent s Centre for Applied Medical Research (AMR) and NSW State Reference Laboratory for HIV at St Vincent s Hospital, Sydney; NSW 2 Bloodborne viral and sexually transmissible infections in Aboriginal and Torres Strait Islander People: Surveillance and Evaluation Report 215

9 Collaboration of National Prison Entrants Bloodborne Virus Survey State and Territory Sites Alexander Maconochie Centre, ACT Corrections Health, Canberra, ACT Justice Health and Forensic Mental Health Network, Matraville; Cessnock Correctional Centre, Cessnock; Metropolitan Remand and Reception Centre, Silverwater; Parklea Correctional Centre, Parklea; Silverwater Women s Correctional Centre, Silverwater; South Coast Correctional Centre, Nowra; Tamworth Correctional Centre, Tamworth; NSW Department of Correctional Services NT, Berrimah; NT Remote Health, Darwin; Darwin Correctional Centre, Berrimah; NT Prison Health Services, West Moreton Hospital and Health Service, Ipswich, Boonah, Esk and Gatton; Townsville Hospital and Health Service Services, Townsville; Central Queensland Hospital and Health Service; Cairns & Hinterland Hospital and Health Service; Arthur Gorrie Correctional Centre, Wacol; Brisbane Correctional Centre, Brisbane; Lotus Glenn Correctional Centre, Mareeba; QLD SA Prison Health Service, Adelaide; Adelaide Remand Centre, Adelaide; Adelaide Women s Prison, Adelaide; City Watch House, Adelaide; SA Tasmania Correctional Primary Health Services, Department of Health and Human Services, Tasmanian Government, Hobart; Hobart Reception Prison, Hobart; Launceston Reception Prison, Launceston; Risdon Prison Complex, Risdon Vale; TAS Justice Health Victoria, Melbourne; Dame Phyllis Frost Centre, Ravenhall; Melbourne Assessment Prison, West Melbourne; VIC Department of Corrective Services, Perth; Bandyup Women s Prison, Middle Swan; Hakea Prison, Canning Vale; Greenough Regional Prison, Narngulu; WA Gonorrhoea Surveillance Working Group Mr John Bates, Department of Health Queensland Government, Brisbane, QLD Ms Amy Bright, Australian Government Department of Health, Canberra, ACT Dr Marcus Chen, Melbourne Sexual Health Centre, Melbourne, VIC Professor Christopher Fairley, Melbourne Sexual Health Centre, Melbourne, VIC Mr Kevin Freeman, Royal Darwin Hospital, Darwin, NT Dr Manoji Gunathilake, Northern Territory CDC, Darwin, NT Ms Nasra Higgins, Victorian Department of Health and Human Services, Melbourne, VIC Scientia Professor John Kaldor, Professor Basil Donovan, Associate Professor Rebecca Guy, Dr Marlene Kong, Dr Skye McGregor, Ms Dina Saulo, The Kirby Institute, UNSW Australia, Sydney, NSW Professor Monica Lahra, Division of Microbiology and WHO Collaborating Centre for STD, The Prince of Wales Hospital, Sydney, NSW Associate Professor Stephen Lambert, Department of Health Queensland Government, Brisbane, QLD Clinical Associate Professor Lewis Marshall, Fremantle Hospital, Fremantle, WA Ms Belinda McEwan, Royal Hobart Hospital, Hobart, TAS Ms Rhonda Owen, Australian Government Department of Health, Canberra, ACT Mrs April Roberts Witteveen, Australian Capital Territory CDNA, Canberra, ACT Dr Nathan Ryder, Hunter New England Local Health District, Newcastle, NSW Dr Christine Selvey, Communicable Diseases Branch, Health Protection NSW, Sydney, NSW Ms Nicola Stephens, Victorian Department of Health and Human Services, Melbourne, VIC Ms Janet Strachan, University of Melbourne, Melbourne, VIC Mr Jiunn Yih Su, Northern Territory CDC, Darwin, NT Dr Russell Waddell, Communicable Disease Control Branch, SA Health, Government of South Australia, Adelaide, SA Associate Professor David Whiley, Queensland Paediatric Infectious Diseases Laboratory, Royal Children s Hospital, Brisbane, QLD Dr James Wood, School of Public Health and Community Medicine, UNSW Australia, Sydney, NSW Bloodborne viral and sexually transmissible infections in Aboriginal and Torres Strait Islander People: Surveillance and Evaluation Report 215 3

10 National Organisations Australasian Sexual Health Alliance, Sydney, NSW Australasian Society for HIV Medicine, Sydney, NSW Australasian Society for Infectious Diseases, Melbourne, VIC Australian Federation of AIDS Organisations, Sydney, NSW Australian Government Department of Health, Canberra, ACT Australian Injecting and Illicit Drug Users League, Canberra, ACT Australian Institute of Health and Welfare, Canberra, ACT Australian Paediatric Surveillance Unit, Westmead, NSW Australian Red Cross Blood Service, Melbourne, VIC Centre for Social Research in Health, UNSW Australia, Sydney, NSW Communicable Diseases Network Australia, Canberra, ACT Hepatitis Australia, Canberra, ACT National Aboriginal Community Controlled Health Organisation, Canberra, ACT National Association of People with HIV Australia, Sydney, NSW National Bloodborne Virus and Sexually Tranmissible Infections Surveillance Subcommittee (NBBVSTI) of the Communicable Diseases Network of Australia (CDNA) National Serology Reference Laboratory, Australia, Fitzroy, VIC Scarlet Alliance, Australian Sex Workers Association, Sydney, NSW State/Territory Health Departments Communicable Disease Control Section, Health Protection Service, ACT Government, Canberra, ACT Communicable Diseases Branch, Health Protection NSW, NSW Health, NSW Government, North Sydney, NSW Sexual Health and Blood Borne Virus Unit, Centre for Disease Control, Northern Territory Department of Health, Northern Territory Government, Darwin, NT Communicable Diseases Unit, Queensland Department of Health, Queensland Government, Brisbane, QLD STI and BBV Section, SA Health Communicable Disease Control Branch, SA Health, Government of South Australia, Adelaide, SA Department of Health and Human Services, Tasmanian Government, Hobart, TAS Communicable Disease Epidemiology and Surveillance, Health Protection Branch, Department of Health and Human Services Victoria, State Government of Victoria, Melbourne, VIC; Macfarlane Burnet Institute for Medical Research and Public Health Limited, Prahran, VIC; WHO Regional Reference Laboratory for Hepatitis B, Victorian Infectious Diseases Reference Laboratory, The Doherty Institute, Melbourne, VIC Communicable Disease Control Directorate, WA Department of Health, Government of Western Australia, Perth, WA National Aboriginal Community Controlled Health Organisation: Mr Mark Saunders 4 Bloodborne viral and sexually transmissible infections in Aboriginal and Torres Strait Islander People: Surveillance and Evaluation Report 215

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12 Medical and epidemiological terms Chlamydia: A sexually transmissible infection caused by the bacterium Chlamydia trachomatis. The infection is asymptomatic in about 8% of cases. In those with symptoms, the infection causes inflammation of the urethra, causing some pain and penile discharge, and in females the main symptoms are intermenstrual bleeding and dysuria. Complications of infection are particularly serious for females and can include pelvic inflammatory disease, ectopic pregnancy and infertility. Chlamydia is fully curable by a single dose of antibiotics. Donovanosis: A sexually transmissible infection caused by a bacterium (Klebsiella granulomatis). The most common symptom is the presence of one or more painless ulcer/lesion in the genital, or anal regions. The ulcer/lesions can progress and become complicated by other bacterial infections if untreated, ultimately resulting in erosion to the affected part of the body. Donovanosis is fully curable by 3 to 4 doses of antibiotics over a month. Donovanosis occurs in central and northern Australia, and is now very rare. Gonorrhoea: A sexually transmissible infection caused by a bacterium (Neisseria gonorrhoea). The infection is asymptomatic in about 8% of women, and 5% of men. Symptoms are similar to those of chlamydia, as are the complications. Most males with urethral gonorrhoea will eventually develop symptoms. Gonorrhoea can be effectively treated with antibiotics. HBV (hepatitis B virus) infection: An infection caused by the hepatitis B virus which is transmissible by blood and sexual contact, as well as from mother to child at birth. Newly diagnosed hepatitis B infection means that a person previously not known to have the infection has been tested and now found to have the infection. Newly acquired infections are those that have been acquired within the past two years. HCV (hepatitis C virus) infection: An infection caused by a virus that is transmissible by blood contact as well as from mother to child. Newly diagnosed hepatitis C infection means that a person previously not known to have the infection has been tested and now found to have the infection. Newly acquired infections are those that have been acquired within the past two years HIV (human immunodeficiency virus) infection: An infection caused by a virus that is transmissible by sexual and blood contact, as well as from mother to child. If untreated, HIV infection can progress to Acquired Immune Deficiency Syndrome (AIDS). Newly diagnosed HIV infection means that a person previously not known to have the infection has been tested and now found to have the infection. Newly acquired HIV infection means the person has become infected within the past year. Infectious syphilis: A sexually transmissible infection caused by a bacterium (Treponema pallidum). Infectious syphilis is infection of less than two years duration. The main symptoms include a painless lesion/ulcer at the site of infection within the first few weeks of infection, followed by other symptoms (e.g. rash) a couple of months later. Often symptoms are not detected. In the absence of treatment, there will then be a period of several years without any symptoms, with a chance of a range of complications over decades that can involve the skin, bone, the central nervous system and the cardiovascular system. Infectious syphilis is fully curable with a single injection of long acting penicillin. For more information on these infections, see the National Management Guidelines for Sexually Transmitted Infections 7th Edition. Age specific rate: The number of cases occurring in a specified age group per 1 population of the specified age group: Example: Age specific notification rate of diagnosis of gonorrhoea among males aged 2 29 years Number of gonorrhoea cases among males aged 2 29 years Number of males in the population aged 2 29 years X 1 6 Bloodborne viral and sexually transmissible infections in Aboriginal and Torres Strait Islander People: Surveillance and Evaluation Report 215

13 Age standardised rate of infection: The proportion of notifications in a particular population who have the infection, adjusted by a mathematical technique to account for the age structure so that comparisons can be made across populations. Area of residence: Area of residence, indicated by postcode, is classified into one of five areas: major cities, inner regional, outer regional, remote and very remote. According to the latest census, 21.5% of the Aboriginal and Torres Strait Islander population lived in remote and very remote areas, 43.9% in inner and outer regional areas, and 34.6% in major cities (Figure 1); compared with 1.8%, 27.4% and 7.9% of the non Indigenous population respectively (Figure 1) (See Methodological Notes for further information). Figure 1 Area of residence, 214, by Aboriginal and Torres Strait Islander status Area of residence Major Cities Inner regional Outer regional Remote Very remote Percentage (%) Aboriginal and Torres Strait Islander Non-Indigenous Source: Australian Bureau of Statistics 211 Completeness of data on Aboriginal and Torres Strait Islander status Incomplete information on Aboriginal and Torres Strait Islander identification has the potential to underestimate the true extent of these infections in the Aboriginal and Torres Strait Islander population. In 214, all jurisdictions reported Aboriginal and Torres Strait Islander status for greater than 5% of diagnoses of HIV, infectious syphilis, and newly acquired hepatitis B. However, Aboriginal and Torres Strait Islander status was reported for less than 5% of diagnoses in the following jurisdictions (Figure 2, 3): Chlamydia: Australian Capital Territory, New South Wales, Tasmania and Victoria Newly diagnosed hepatitis B: New South Wales, Victoria and Queensland Newly diagnosed hepatitis C: New South Wales, Victoria and Queensland. Newly acquired hepatitis C: Queensland Gonorrhoea: New South Wales Time trends in diagnoses of specific infections by jurisdiction were included in the report if information on Aboriginal and Torres Strait Islander status was available for at least 5% of diagnoses of the infection in every one of the past five years. Therefore there may be jurisdictions who met the 5% threshold in 214 but not in other years, and thus their data were not included in this report unless otherwise specified (Figure 2). Bloodborne viral and sexually transmissible infections in Aboriginal and Torres Strait Islander People: Surveillance and Evaluation Report 215 7

14 Figure 2 Reporting of Aboriginal and Torres Strait Islander status at notification of selected sexually transmissible infections, 214, by State/Territory Proportion reporting Aboriginal and Torres Strait Islander status ACT NSW NT QLD Chlamydia Gonorrhoea Infectious syphilis HIV SA TAS VIC WA State/Territory Figure 3 Reporting of Aboriginal and Torres Strait Islander status at notification of viral hepatitis diagnosis, 214, by State/Territory Proportion reporting Aboriginal and Torres Strait Islander status ACT NSW NT QLD SA TAS Hepatitis B (newly acquired) Hepatitis B (all) Hepatitis C (newly acquired) Hepatitis C (all) VIC WA State/Territory 8 Bloodborne viral and sexually transmissible infections in Aboriginal and Torres Strait Islander People: Surveillance and Evaluation Report 215

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16 Summary HIV infection A total of 1 81 notifications of newly diagnosed HIV infection were reported in 214 including 33 which were identified as Aboriginal and Torres Strait Islander. Between , the notification rate of newly diagnosed HIV infection was higher for the Aboriginal and Torres Strait Islander population compared to the non Indigenous population (5.9 vs. 3.7 per 1 in 214). The notification rates of newly diagnosed HIV infection in the Aboriginal and Torres Strait Islander population are based on small numbers, and may reflect localised occurrences rather than national patterns. In the five year period , a higher proportion of notifications of newly diagnosed HIV infection among the Aboriginal and Torres Strait Islander population were attributed to injecting drug use (16% vs. 3%) and heterosexual sex (2% vs. 13%) and in females (22% vs. 5%), as compared with the non Indigenous Australian born population. Based on tests for immune function, in 214 a third (3%) of the new HIV diagnoses among the Aboriginal and Torres Strait Islander population were determined to be late, in that they were in people who were likely to have had the infection for at least 4 years without being tested. The higher rate of HIV diagnosis in Aboriginal and Torres Strait Islander peoples in the past five years requires a strengthened focus on prevention in this vulnerable population. Hepatitis C infection A total of cases of newly diagnosed hepatitis C infection were reported in Australia in 214; 877 (8%) occurred among the Aboriginal and Torres Strait Islander population, (32%) were among the non Indigenous population and a further (6%) cases for which Indigenous status was not reported. The rate of newly diagnosed hepatitis C infection in the Aboriginal and Torres Strait Islander population in 214 was 164 per 1, almost 5 times higher than the 35 per 1 in the non Indigenous population. In the last five years, there was a 38% increase in the notification rate of newly diagnosed hepatitis C infection in the Aboriginal and Torres Strait Islander population (from 119 in 21 to 164 per 1 in 214), whereas the rate in the non Indigenous population decreased by 15% (from 41 in 21 to 35 per 1 in 214). The increasing rate of hepatitis C diagnosis among Aboriginal and Torres Strait Islander peoples, possibly relates to higher levels of re use of injecting equipment in this population. Hepatitis B infection There were a total of notifications of newly diagnosed hepatitis B infection in Australia in 214; of these, 164 (2%) were among the Aboriginal and Torres Strait Islander population, (34%) were among the non Indigenous population and a further (64%) notifications for which Indigenous status was not reported. In 214, the notification rate of newly diagnosed hepatitis B infection for the Aboriginal and Torres Strait Islander population was 2 times higher than the non Indigenous population (5 per 1 vs. 23 per 1 ). In the period , there was a 44% decline in the notification rate of newly diagnosed hepatitis B infection in the Aboriginal and Torres Strait Islander population (from 9 per 1 in 21 to 5 per 1 in 214) suggesting the immunisation programs for hepatitis B are starting to have a benefit. 1 Bloodborne viral and sexually transmissible infections in Aboriginal and Torres Strait Islander People: Surveillance and Evaluation Report 215

17 Sexually transmissible infections Chlamydia Chlamydia continued to be the most frequently reported notifiable condition in Australia in 214. There were a total of notifications in 214, (8%) were among the Aboriginal and Torres Strait Islander population, (29%) were among the non Indigenous population and Indigenous status was not reported for (63%) notifications. The chlamydia notification rate for the Aboriginal and Torres Strait Islander population of per 1 in 214 was 3 times that of the non Indigenous notification rate at 389 per 1 population. In 214, 8% of chlamydia notifications among the Aboriginal and Torres Strait islander population, and 78% among the non-indigenous population were in year olds. The chlamydia notification rate in Australia in the Aboriginal and Torres Strait Islander population has remained relatively stable since 21, with variation by jurisdiction. In major cities, the chlamydia notification rate in the Aboriginal and Torres Strait Islander population was 2 times higher than that among the non Indigenous population, increasing to 7 times higher in remote areas. The higher chlamydia rates in the Aboriginal and Torres Strait Islander population than the non Indigenous population emphasise the need for higher coverage of testing and treatment in this population. Gonorrhoea There were a total of notifications of gonorrhoea in Australia in 214; (23%) were among the Aboriginal and Torres Strait Islander population, (44%) among the non Indigenous population, and Indigenous status was not reported for (33%) diagnoses. In 214, the gonorrhoea rate in the Aboriginal and Torres Strait Islander population was 18 times that of the non Indigenous population (859 vs. 49 per 1 population), increasing to 69 times higher in remote areas. In 214, 71% of cases among the Aboriginal and Torres Strait Islander population were diagnosed among people in the age group years compared with 56% in the non Indigenous population. Since 211, the gonorrhoea notification rate in the Aboriginal and Torres Strait Islander population has declined by 18% in both the age group and in the 2 29 year age group. In Aboriginal and Torres Strait Islander peoples, the rate of gonorrhoea diagnosis among males and females is roughly equal, indicating predominantly heterosexual transmission. In contrast, diagnoses in non Indigenous people are predominantly in men, in urban settings, suggesting that transmission is primarily related to sex between men. Infectious syphilis There were a total of infectious syphilis notifications nationally in 214, with 235 (12%) among the Aboriginal and Torres Strait Islander population, (79%) among the non Indigenous population and a further 176 (9%) cases for which Indigenous status was not reported. In 214, the infectious syphilis notification rate in the Aboriginal and Torres Strait Islander population was 4 times higher than the non Indigenous population (32 vs. 8 per 1 population) increasing to 3 times higher in remote areas. Rates of infectious syphilis notifications among the Aboriginal and Torres Strait Islander population increased in year olds in 211 (from 34 per 1 in 21 to 95 per 1 in 211), due to an outbreak in the northern areas of Queensland, the Northern Territory and Western Australia, and was 99 per 1 in 214. In Aboriginal and Torres Strait Islander peoples, the rate among males and females is roughly equally, indicating predominantly heterosexual transmission. In contrast, diagnoses in non Indigenous people are predominantly in men, in urban settings, suggesting that transmission is primarily related to sex between men. Notifications of congenital syphilis in Aboriginal and Torres Strait Islander peoples declined from 7 in 25 to 1 in 29, and then returned to 5 in 214. The resurgence of infection in remote communities after years of declining rates, bringing with it cases of congenital syphilis, emphasises the need for testing and treatment in this population, particularly in antenatal settings. Bloodborne viral and sexually transmissible infections in Aboriginal and Torres Strait Islander People: Surveillance and Evaluation Report

18 Donovanosis Donovanosis, once a regularly diagnosed sexually transmissible infection among remote Aboriginal populations, is now close to elimination Since 27 there have been fewer than 3 notifications of donovanosis per year nationally, with zero in 211, 1 in 212, zero in 213 and 1 in 214. Table 1 Aboriginal and Torres Strait Islander population in Australia, 214, by State/Territory Estimated resident population State/Territory Australian Capital Territory 6 77 New South Wales Northern Territory Queensland South Australia 39 8 Tasmania Victoria Western Australia Total Source: Estimates and Projections, Aboriginal and Torres Strait Islander Australians, Aboriginal and Torres Strait Islander peoples make up 3% of the total Australian population, yet accounted for a disproportionate level (3 27%) of all sexually transmissible infections and bloodborne viruses diagnoses in 214. (Figure 4). For many infections this proportion would be a lower limit, due to the incompleteness of reporting of Aboriginal and Torres Strait Islander status (see Figures 2,3 and 4). Figure 4 Proportion of all diagnoses by Aboriginal and Torres Strait Islander status, 214 Proportion (%) Newly diagnosed hepatitis B infection HIV infection Newly diagnosed hepatitis C infection Chlamydia notifications Newly acquired hepatitis B infection 12 Infectious syphilis Gonorrhoea Newly acquired hepatitis C infection Aboriginal and Torres Strait Islander Non-Indigenous Not reported Source: Australian National Notifiable Disease Surveillance System 12 Bloodborne viral and sexually transmissible infections in Aboriginal and Torres Strait Islander People: Surveillance and Evaluation Report 215

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20 Figures Figure 1 Area of residence, 214, by Aboriginal and Torres Strait Islander status 7 Figure 2 Reporting of Aboriginal and Torres Strait Islander status at notification of selected sexually transmissible infections, 214, by State/Territory 8 Figure 3 Reporting of Aboriginal and Torres Strait Islander status at notification of viral hepatitis diagnosis, 214, by State/Territory 8 Figure 4 Proportion of all diagnoses by Aboriginal and Torres Strait Islander status, Figure 5 Figure 6 Newly diagnosed HIV notification rate in the Australian born population per 1, , by Aboriginal and Torres Strait Islander status 19 Newly diagnosed HIV notification rate in the Australian born population per 1, , by Aboriginal and Torres Strait Islander status and sex 2 Figure 7 Newly diagnosed HIV infection and HIV exposure category, , by Aboriginal and Torres Strait Islander status 22 Figure 8 Figure 9 Figure 1 Figure 11 Figure 12 Newly diagnosed HIV notifications by heterosexual exposure category, , by Aboriginal and Torres Strait Islander status 22 Newly diagnosed HIV notification rate in the Australian born population per 1, 214, by Aboriginal and Torres Strait Islander status and area of residence 23 Newly diagnosed HIV notification rate per 1 in Aboriginal and Torres Strait Islander peoples, , by area of residence 23 HIV prevalence in needle and syringe program participants, , by Aboriginal and Torres Strait Islander status and sex 24 Proportion of people who inject drugs seen at needle and syringe programs who reported an HIV antibody test in the past 12 months, , by Aboriginal and Torres Strait Islander status and sex 25 Figure 13 Used a condom at last sex, Aboriginal and Torres Strait Islander peoples aged years, by area of residence 26 Figure 14 Prevalence of inconsistent condom use with casual partners among people who inject drugs attending needle and syringe programs, , by Aboriginal and Torres Strait Islander status and sex 27 Figure 15 Newly diagnosed hepatitis C notification rate per 1, , by Aboriginal and Torres Strait Islander status 29 Figure 16 Figure 17 Figure 18 Figure 19 Figure 2 Figure 21 Newly diagnosed hepatitis C notification rate per 1, , by Aboriginal and Torres Strait Islander status and sex 3 Number of notifications of newly diagnosed hepatitis C infection, 214, by Aboriginal and Torres Strait Islander status, age and sex 3 Newly diagnosed hepatitis C notification rate per 1, 214, by Aboriginal and Torres Strait Islander status, sex and age group 31 Newly diagnosed hepatitis C notification rate per 1, , in Aboriginal and Torres Strait Islander peoples, by age group 31 Newly diagnosed hepatitis C notification rate per 1, , by Aboriginal and Torres Strait Islander status and State/Territory 32 Newly diagnosed hepatitis C notification rate per 1, 214, by Aboriginal and Torres Strait Islander status and area of residence 32 Figure 22 Newly diagnosed hepatitis C notification rate per 1, , by area of residence 33 Figure 23 Newly acquired hepatitis C notification rate per 1, , by Aboriginal and Torres Strait Islander status 34 Figure 24 Newly acquired hepatitis C notification rate per 1, 214, by Aboriginal and Torres Strait Islander status and age group 34 Figure 25 Newly acquired hepatitis C notification rate per 1, , by age 35 Figure 26 Newly acquired hepatitis C notification rate per 1, 214, by Aboriginal and Torres Strait Islander status and area of residence 35 Figure 27 Newly acquired hepatitis C notification rate per 1, , by area of residence 36 Figure 28 Hepatitis C antibody prevalence in needle and syringe program participants, , by Aboriginal and Torres Strait Islander status Bloodborne viral and sexually transmissible infections in Aboriginal and Torres Strait Islander People: Surveillance and Evaluation Report 215

21 Figure 29 Hepatitis C antibody prevalence among a sample of incoming Australian prisoners, by year of survey, and Aboriginal and Torres Strait Islander status 37 Figure 3 Injecting drug use in the last year, Aboriginal people aged years, by sex, and age group 37 Figure 31 Figure 32 Figure 33 Prevalence of receptive syringe sharing (RSS) by needle and syringe program participants, , by Aboriginal and Torres Strait Islander status 38 Proportion of people who inject drugs seen at needle and syringe programs who reported a hepatitis C antibody test in the past twelve months, Current and past use of hepatitis C antiviral therapy for hepatitis C antibody positive needle and syringe program participants, , by Aboriginal and Torres Strait Islander status 39 Figure 34 Newly diagnosed hepatitis B notification rate per 1, , by Aboriginal and Torres Strait Islander status 41 Figure 35 Newly diagnosed hepatitis B notification rate per 1, , by Aboriginal and Torres Strait Islander status and sex 42 Figure 36 Number of cases of newly diagnosed hepatitis B, 214, by Aboriginal and Torres Strait Islander status and age group 42 Figure 37 Figure 38 Figure 39 Figure 4 Figure 41 Newly diagnosed hepatitis B notification rate per 1, , by Aboriginal and Torres Strait Islander status and age group 43 Newly diagnosed hepatitis B notification rate per 1, , in Aboriginal and Torres Strait Islander peoples, by age group 43 Newly diagnosed hepatitis B notification rate per 1, , by Aboriginal and Torres Strait Islander status and State/Territory 44 Newly diagnosed hepatitis B notification rate per 1, 214, by Aboriginal and Torres Strait Islander status and area of residence 45 Newly diagnosed hepatitis B notification rate per 1, , in Aboriginal and Torres Strait Islander peoples, by area of residence 45 Figure 42 Newly acquired hepatitis B notification rate per 1, , by Aboriginal and Torres Strait Islander status 46 Figure 43 Newly acquired hepatitis B notification rate per 1, , by Aboriginal and Torres Strait Islander status and sex 47 Figure 44 Number of newly acquired hepatitis B notifications, 214, by Aboriginal and Torres Strait Islander status 47 Figure 45 Figure 46 Figure 47 Figure 48 Newly acquired hepatitis B notification rate per 1, 214, by Aboriginal and Torres Strait Islander status, sex, and age group 48 Newly acquired hepatitis B notification rate per 1, , in Aboriginal and Torres Strait Islander peoples, by age group 48 Hepatitis B surface antigen prevalence among a sample of incoming Australian prisoners, by year of survey and Aboriginal and Torres Strait Islander status 49 Hepatitis B vaccination coverage estimates at 12 and 24 months, , by Aboriginal and Torres Strait Islander status 49 Figure 49 Chlamydia notification rate per 1, , by Aboriginal and Torres Strait Islander status 51 Figure 5 Chlamydia notification rate per 1, , by Aboriginal and Torres Strait Islander status and sex 51 Figure 51 Number of chlamydia notifications in 214, by Aboriginal and Torres Strait Islander status, sex and age group 52 Figure 52 Chlamydia notification rate per 1 in 214, by Aboriginal and Torres Strait Islander status, sex and age group 53 Figure 53 Chlamydia notification rate per 1, , by Aboriginal and Torres Strait Islander status and select age groups 53 Figure 54 Chlamydia notification rate per 1, , by Aboriginal and Torres Strait Islander status and State/Territory 54 Figure 55 Chlamydia notification rate per 1 in 214, by Aboriginal and Torres Strait Islander status and area of residence 55 Figure 56 Chlamydia notification rate per 1, , by area of residence 55 Figure 57 Gonorrhoea notification rate per 1, , by Aboriginal and Torres Strait Islander status 57 Figure 58 Gonorrhoea notification rate per 1, , by Aboriginal and Torres Strait Islander status and sex 57 Figure 59 Number of gonorrhoea notifications in 214, by Aboriginal and Torres Strait Islander status, sex and age group 58 Bloodborne viral and sexually transmissible infections in Aboriginal and Torres Strait Islander People: Surveillance and Evaluation Report

22 Figures (continued) Figure 6 Gonorrhoea notification rate per 1 in 214, by Aboriginal and Torres Strait Islander status, sex and age group 58 Figure 61 Gonorrhoea notification rate per 1 in selected age groups, , by Aboriginal and Torres Strait Islander status 59 Figure 62 Gonorrhoea notification rates per 1, , by Aboriginal and Torres Strait Islander status, and State/Territory 59 Figure 63 Gonorrhoea notification rate per 1, in 214, by Aboriginal and Torres Strait Islander status and area of residence 6 Figure 64 Gonorrhoea notification rate per 1, , by area of residence 6 Figure 65 Syphilis and infectious syphilis notification rates per 1, , by Aboriginal and Torres Strait Islander status 62 Figure 66 Number of infectious syphilis notifications in 214, by Aboriginal and Torres Strait Islander status, sex and age group 63 Figure 67 Infectious syphilis notification rate per 1 in 214, by Aboriginal and Torres Strait Islander status and age group 63 Figure 68 Syphilis notification rates per 1, , select age group and duration of infection 64 Figure 69 Figure 7 Infectious syphilis notification rate per 1, , by Aboriginal and Torres Strait Islander status and State/Territory 65 Infectious syphilis notification rate per 1 in 214, by Aboriginal and Torres Strait Islander status and area of residence 65 Figure 71 Infectious syphilis notification rate per 1, , by area of residence 66 Figure 72 Number of cases of congenital syphilis notifications, , by Aboriginal and Torres Strait Islander status 66 Figure 73 Number of donovanosis notifications, , by Aboriginal and Torres Strait Islander status Bloodborne viral and sexually transmissible infections in Aboriginal and Torres Strait Islander People: Surveillance and Evaluation Report 215

23 Tables Table 1 Aboriginal and Torres Strait Islander population in Australia, 214, by State/Territory 12 Table 2 Characteristics of cases of newly diagnosed HIV infection in Aboriginal and Torres Strait Islander peoples, Table 3 Estimated number of Aboriginal and Torres Strait Islander peoples living with HIV and HIV prevalence, 214, Australia 24 Table 4 HIV testing history, Aboriginal and Torres Strait Islander year olds, by area of residence 25 Table 5 Source of notification of specific sexually transmissible infections to the National Notifiable Diseases Surveillance System by State/Territory 7 Bloodborne viral and sexually transmissible infections in Aboriginal and Torres Strait Islander People: Surveillance and Evaluation Report

24 Main Findings HIV infection A total of 1 81 notifications of newly diagnosed HIV infection were reported in 214 including 33 which were identified as Aboriginal and Torres Strait Islander. Between , the notification rate of newly diagnosed HIV infection was higher for the Aboriginal and Torres Strait Islander population compared to the non Indigenous population (5.9 vs. 3.7 per 1 in 214). The notification rates of newly diagnosed HIV infection in the Aboriginal and Torres Strait Islander population are based on small numbers, and may reflect localised occurrences rather than national patterns. In the five year period , a higher proportion of notifications of newly diagnosed HIV infection among the Aboriginal and Torres Strait Islander population were attributed to injecting drug use (16% vs. 3%) and heterosexual sex (2% vs. 13%) and in females (22% vs. 5%), as compared with the non Indigenous Australian born population. Based on tests for immune function, a third (3%) of the new HIV diagnoses among the Aboriginal and Torres Strait Islander population were determined to be late, in that they were in people who had their infection for at least 4 years without being tested. In 214 HIV prevalence in Aboriginal and Torres Strait Islander peoples was similar to the Australian born non Indigenous population (.11 vs.13%). The higher rate of HIV diagnosis in Aboriginal and Torres Strait Islander peoples in the past five years requires a strengthened focus on prevention in this vulnerable population. 18 Bloodborne viral and sexually transmissible infections in Aboriginal and Torres Strait Islander People: Surveillance and Evaluation Report 215

25 New diagnoses All jurisdictions have high completeness rates for Aboriginal and Torres Strait Islander status in HIV notifications and thus data from all jurisdictions are included. In 214, of the 1 81 notifications of newly diagnosed HIV infections, 33 were identified in the Aboriginal and Torres Strait Islander population (Table 2). For the purposes of a longer term trend analysis of HIV diagnosis in the Aboriginal and Torres Strait Islander population we have analysed data for the period and compared this to data for the non Indigenous Australian born population. Figure 5 Newly diagnosed HIV notification rate in the Australian born population per 1, , by Aboriginal and Torres Strait Islander status Age standardised rate per HIV Aboriginal and Torres Strait Islander Non-Indigenous Source: State and Territory health authorities; ABS Catalogues ; 31DO3_21212; 3238do1_211 To enable more appropriate comparison between the Aboriginal and Torres Strait Islander and non Indigenous populations, the rate of infection per 1 people was calculated, taking into account the age structures of each population. The rate of newly diagnosed HIV infection in the Aboriginal and Torres Strait Islander population was 3.6 per 1 in 25, remained fairly stable between 26 and 211 and then increased in , reaching 5.9 per 1 in 214. In the Australian born non Indigenous population, the rate remained stable at 4. per 1 in 25 and 3.7 per 1 in 214 (Figure 5). The notification rates of newly diagnosed HIV infection in the Aboriginal and Torres Strait Islander population are based on small numbers, and may reflect localised occurrences rather than national patterns. The notification rate of newly diagnosed HIV infection in Aboriginal and Torres Strait Islander males fluctuated, with an increase in 29, a decline in 21 and an increase in (6.2 in 25, 8.4 in 29, 5.2 in 21 and 9.6 per 1 in 214), and remained stable in Australian born non Indigenous males (7.6 in 25 to 7. in 214 per 1 ) (Figure 6). The notification rates of newly diagnosed HIV infection among Aboriginal and Torres Strait Islander females fluctuated between 1.1 per 1 population in 25 to 2.4 per 1 population in 214, but were higher than Australian born non Indigenous females where the rate of HIV diagnosis remained stable (.4 in 25 and.3 per 1 in 214) (Figure 6). Bloodborne viral and sexually transmissible infections in Aboriginal and Torres Strait Islander People: Surveillance and Evaluation Report

26 Figure 6 Newly diagnosed HIV notification rate in the Australian born population per 1, , by Aboriginal and Torres Strait Islander status and sex Age standardised rate per Aboriginal and Torres Strait Islander males Aboriginal and Torres Strait Islander females Non-Indigenous males Non-Indigenous females Source: State and Territory health authorities; ABS Catalogues ; 31DO3_21212; 3238do1_ Of the 242 notifications of newly diagnosed HIV infections among the Aboriginal and Torres Strait Islander population in the ten year period , 79% were diagnosed among males and the median age at diagnosis was 33 years (Table 2). The best indicator of how long a person has had HIV is the CD4+ cell count per microlitre, which is above 5 in most people without HIV, and declines on average by 5 1 per year in people with untreated HIV 1. The proportion of newly detected HIV cases with a late diagnosis, defined by a CD4+ cell count less than 35 cells/μl at diagnosis, was 34% over the past ten years (39% in females and 32% in males) (Table 2). 2 Bloodborne viral and sexually transmissible infections in Aboriginal and Torres Strait Islander People: Surveillance and Evaluation Report 215

27 Table 2 Characteristics of cases of newly diagnosed HIV infection in Aboriginal and Torres Strait Islander peoples, of HIV diagnosis Total 1 Characteristic Total cases Males (%) Median age (years) Newly acquired 3 HIV infection n (%) 2 (15.) 7 (3.4) 5 (26.3) 6 (31.6) 7 (29.2) 5 (22.7) 5 (21.7) 1 (3.3) 9 (34.6) 8 (24.4) 65 (26.9) Late and advanced HIV infection status at HIV diagnosis (%) 3,4 Late HIV diagnosis Adv anced HIV diagnosis State/Territory, n Australian Capital Territory New South Wales Northern Territory Queensland South Australia Tasmania Victoria Western Australia HIV exposure category, % Male to male sex Male to male sex and injecting drug use Injecting drug use Heterosexual sex Mother with/at risk of HIV infection Other/undetermined exposure HIV 1 Not adjusted for multiple reporting 2 Newly acquired HIV infection was defined as newly diagnosed infection with a negative or indeterminate HIV antibody test result or a diagnosis of primary HIV infection within one year of HIV diagnosis. 3 Late diagnosis, advanced infection and median CD4+ cell count for HIV diagnoses in 24 only. Total percentage with late HIV diagnosis and advanced HIV infection, and median CD4+ cell count for diagnoses in only. 4 Late HIV diagnosis was defined as newly diagnosed HIV infection with a CD4+ cell count of less than 35 cells/μl, and advanced HIV infection as newly diagnosed infection with a CD4+ cell count of less than 2 cells/μl 5 Excludes men who have sex with men Source: State and Territory health departments In the five year period , a higher proportion of notifications of newly diagnosed HIV infection among the Aboriginal and Torres Strait Islander population were attributed to injecting drug use (16% vs. 3% respectively) and a similar proportion to heterosexual sex (2% vs. 13% respectively) (Figure 7) and in females (22% vs. 5%), as compared with the Australian born non Indigenous population. Bloodborne viral and sexually transmissible infections in Aboriginal and Torres Strait Islander People: Surveillance and Evaluation Report