Prevalence of Hepatitis B virus, Hepatitis C virus and HIV in blood donors of different areas of Khyber Pukhtoonkhwa, Pakistan

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Journal of Biodiversity and Environmental Sciences (JBES) ISSN: 2220-6663 (Print) 2222-3045 (Online) Vol. 9, No. 1, p. 304-309, 2016 http://www.innspub.net RESEARCH PAPER OPEN ACCESS Prevalence of Hepatitis B virus, Hepatitis C virus and HIV in blood donors of different areas of Khyber Pukhtoonkhwa, Pakistan Tariq Ahmed 1, Rahool 2, Noor Nasir Khattak 3, Faizullah Khan 4, Shahabudddin 1, Muhammad Saleem Khan *5 1 Department of Microbiology, Quaid e Azam University Islamabad, Pakistan 2 Department of Endocrinology, Ichan School of Medicine, Queens Hospital Center, New York, USA 3 Department of Obsteristics and Gynecology, KIMS, KMU Peshawar, Pakistan 4 Department of Pharmacy, Quaid e Azam University, Islamabad, Pakistan 5 Department of Zoology, Wildlife and Fisheries, Government College University, Faisalabad, Pakistan Article published on July 31, 2016 Key words: Ratio, HBV, HCV, Prevalence, Blood donors. Abstract It is common to donate blood to save lives of critical patients the carefully transfusion of blood and screening of blood donors is essential to test the blood for the purpose to stop the spreading of the infectious agents trough blood components. Hepatitis is one of the major cause of all the deaths throughout the world as in present, record of past and feature the diseases has alarming signals. The retrospective study period of one year was conducted to show the prevalence of HBV and HCV along with HIV in the blood donors of KPK, Pakistan the information will be helpful for general population which had been remained aware less and unwarned. In current study 8439 blood donors data were examined from well-known blood bank of KPK. The 98.9% donors were HBV negative and 1.1% positive. The 99.3% donors were HCV negative and 0.5% positiv e. Overall prevalence of the hepatitis virus (both B and C) was low in the blood donors. The prevalence of HIV is negligible with only one sample found positive. It is concluded that, HBV, HCV and HIV transmission and occurrence low comparative to other province due to awareness, preventive measures and vaccines availability in the KPK. *Corresponding Author: Muhammad Saleem Khan samiikhan@yahoo.com 304 Ahmed et al.

Introduction In Pakistan Nearly 1.5 million transfusions took place every year (Sultan et al., 2007). Main cause and source of blood borne diseases is the blood components in transfusion which is essential part in transmission of diseases. The screening of blood donors and collection of data from screening remain a good source of information and the prevalence of causative agents in general population (Sultan et al., 2007). The rate of infection of hepatitis B virus, hepatitis C virus and HIV in Pakistan is high as up to 12 million people are suspected to have these infections. (Brown and Ashman, 1996). Hepatitis (hêpar-liver and it isinflammation) as an inflammation of liver irrespective of its cause liver is an important role in metabolism and detoxification in the human body and due to toxicity of the drugs, immune diseases and mostly by the viruses effect the liver in result hepatitis developed due to these risk factors (Bernal and Wendon, 2013). At presently, six different types of hepatitis virus have been identified and named as hepatitis A, B, C, D, E and G viruses (WHO, 2015). Certainly acute hepatitis may converted to chronic which in result of fibrosis, cirrhosis and hepatocellular carcinoma which can be fatal and life threatening (Bernal and Wendon, 2013). Hepatitis B virus is also the causative agent of liver inflammation as like HAV and HCV. About 350 million people reported globally are being infected with HBV and one of the top 10 causes of death and 1 million deaths occur due to HBV infection per annum particularly in economically less-developed or developing countries (Wright, 2006 Khan et al., 2013). Studies reported 7-9 million carriers of HBV infection with carrier rate of 3-5% in Pakistan (Ali et al., 2011). Untreated condition may lead to complications such as acute and chronic hepatitis, hepatocellular carcinoma (HCC), hepatocirrhosis (Li et al., 2015). In Pakistan, there are various risk factors for HBV infection to occur. In children, the main risk factors include cutting of umbilical cord with unsterilized instruments at home, cuts by local barbers, injections, and surgical and dental procedures. For health care workers main risk factors include dental and surgical procedures and needle prick (Ganem and Schneider, 2001). In pregnant women, the risk factors are HBV infected husband, ear and nose pricking, history of jaundice, tooth extraction, and history of injections and blood transfusion (Yousfani et al., 2006; Batool et al., 2008). More than 2 years history of dialysis is a risk factor for dialysis patients repeated blood transfusion is the risk factor for thalassemia children. The symptoms of hepatitis B usually appear after 1-4 months of infection. Most patients do not possess any symptoms in acute infection. The symptoms may include, the patient suffer from abdominal pain, have dark urine, goat (joint pain) and fever. It may also suffer from weakness, nausea, vomiting and loss of appetite. The color of skin and whites of eyes also turn yellow (WHO, 2015). HCV mostly cause acute and chronic liver cirrhosis and hepatocellular carcinoma (Nathans et al., 2009). Chronic infection resulted from acute one with almost 80% of total infected individuals (Sun et al., 1999). More than 70% people get persistent carrying HCV infection and one-fourth of a million deaths occur annually possessing chronic HCV infection (Zein, 2000; Khan et al., 2013). About 170 million people have chronic hepatitis C infection and almost entered into epidemic level because more than 1 million people get HCV infection annually and confirmed as most prevalent as HBV (Re and Kostman, 2005). WHO reported that Hepatitis C in acute form has 20% of recovery chances and 80% chances in chronic infection (Sharma, 2010).The main modes of transmission studied in Pakistan include sharing of needles/syringes (61.45%), minor/major dental surgery procedures (10.62%), blood transfusion (4.26%), razors sharing by barbers (3.90%), and less than 1% due to piercing, tooth brushes and sexual transmission (Muzaffar et al., 2008). However, it has been confirmed that injection drug use is one most vital mode of transmission (Rehman et al., 2011). 305 Ahmed et al.

Pakistan is second most Muslims largest population in the world and has low prevalence of HIV/AIDS. People are less aware regarding HIV/AIDS which is alaruming conditions the people of the Pakistan has strong relationship with India and neighboring gulf countries (Shah et al., 2004). Alone in India, WHO reported 1750,000 cases till 1994. Many communities in Pakistan like Sikh, Punjabi and Hindu have relations with Indian people and visit to their countries time to time. Due to same culture the diseases may spread with sexual contact between the people. The first case was reported in 1987 and the cause was the blood transfusion from a person living abroad (Khanani et al., 1988). In 2004 there was first outbreak of HIV in the remote area of Larkana due to uses of drug injections by addicted people (Shah et al., 2004). The other reason in the country is transgender sex workers (Rai et al., 2007). Though large studies are not conducted overall data available in the country is seroprevalaence 0.008 which is low as previously reported screening suggested the rate in blood donated by donor are few in number (Khattak et al., 2002; Khan et al., 2013). Materials and methods The retrospective study was conduct to investigate the prevalence of HBV and HCV positive samples in the blood donors from different districts of Khyber Pukhtoonkhwa along with HIV. All the serum samples were received along with specifically designed Performa contained information regarding age, sex and geographical region from the blood donors at Fatimid Foundation Peshawar Center, from 1 st July 2014 to 30 th June 2015. The data were analyzed by a statistical package, SPSS version 17.0 for Windows. The results for all variables were given in the form of rates (%). Chi-Square ANOVA and correlation tests were used for categorical variables that measured association among categorical variables. Results In the current study, 0ut of the total 8439 samples, 8343 (98.9%) were HBs Ag negative while 94 (1.1%) were found positive. HCV positive samples were 38 (0.5%) while 8382 (99.3%) were anti HCV negative. HIV was found positive only in one sample. MP and VDRL were not detected any sample. The overall prevalence of the hepatitis virus (both B and C) is low in the blood donors which show that awareness in general population is increasing. The prevalence of HIV is negligible with only one sample found positive for it which is positive indication. Blood group distribution among blood donors Eight Blood groups were found in total 8439 blood donors, in which about ~90 % blood donors have Rh+ positive blood group. Blood group A- Negative was found in 194 (2.3%) donors, A+ Positive was found in 2164 (25.6%), AB- in 74 (0.9%) donors, AB+ in 874 (10.4%) donors, B- Negative in 206 (2.4%), B+ in 2515 (29.8%), O- negative in 171 (2%), O+ Positive in 2241 (26.6) donors (Table 1). Table 1. Blood group distribution among blood donors. Blood Valid Cumulative Frequency Groups A Neg 194 2.3 2.3 2.3 A Pos 2164 25.6 25.6 27.9 AB Neg 74 0.9 0.9 28.8 AB Pos 874 10.4 10.4 39.2 B Neg 206 2.4 2.4 41.6 B Pos 2515 29.8 29.8 71.4 O Neg 171 2.0 2.0 73.4 O Pos 2241 26.6 26.6 100.00 Prevalence of HbsAg in blood donors In total 8439 blood donors HbsAg was tested using kit. 8343 (98.9%) were found Non-reactive, 94 (1.1 %) were found reactive, 1 of the result was not cleared it was undetermined and 1 was recommended (Table 2). 306 Ahmed et al.

Table 2. Prevalence of HbsAg among Blood donors. HbsA Frequency Valid Cumulative Undetermined 1 0.00 0.00 0.00 Non-Reactive 834 98.00 98.00 98.00 Reactive 9 1.00 1.00 100.00 Recommended 1 0.00 0.00 100.00 Prevalence of HCV in blood donors In total 8439 blood donors anti-hcv was tested. 8382 (99.3%) were found Non-reactive, 38 (0.5 %) were found reactive, 2 of the result were undetermined and 17 were recommended (Table 3). Table 3. Prevalence of HCV among Blood donors. Anti-HCV Frequency Percen t Valid Cumulative Undetermined 2 0.20 0.20 0.00 Non-Reactive 8382 99.30 99.30 99.30 Reactive 38 0.50 0.50 99.80 Recommended 17 0.20 0.20 100.00 Prevalence of HIV in blood donors HIV was checked in blood donors and was found positive only in one sample and all other were found negative for HIV (Table 4). Table 4. Prevalence of HIV among Blood donors. HIV Frequency Valid Cumulative Negative 8438 100.00 100.00 100.00 Positive 1 0.01 0.01 100.00 Discussion In this study, we attempt to show prevalence of HBV, HCV and HIV among the blood donors because of most common problem in Pakistan. All of these are considered serious health problems and Very less population is aware about the prevalence of HBV, HCV and HIV in Pakistan. This is mainly due to very rare routine checkup and unawareness of public about symptoms and transmission risk factors of these transmissible diseases. As previous published studies data reported, Pakistan has highly endemic for HBV with nine million infected people. In case of HCV infected people were upto 17 million (Malik et al., 1996; Yousaf et al., 1996). However, in the case of blood donors of KPK (Khyber Pukhtoonkhwa) province lucky the prevalence is low. According to different studies in different areas of Pakistan, like study conducted at Rawalpindi shows the occurrence percentage of HBV infection 2.11% and HCV infection 11.26% (Choudhary and Khan, 2005). A study reported by Malik et al. (1996) which shows carrier rate of HBsAg is 10% and occurrence rate of HCV antibodies varies from 4% to 7%. Another study conducted by Hussain et al. (2015) at NMCH Multan found HBV 2.32% and HCV 3.44% among blood donors. One of other study done by Masood et al. (2005) showed the prevalence of HBV infection 6.5% and HCV infection 11.3% by her study. A survey conducted by Pakistan medical research council from July 2007 to May 2008 reveals that occurrence rate of HBV is 2.5% and HCV is 5% respectively in general population of Pakistan (Khan et al., 2008; Ilyas et al., 2011). According to another small survey conducted among general population of Pakistan the prevalence of hepatitis B is up to 10% and hepatitis c is 4-10% respectively (Malik et al., 1988; Yousaf et al., 1996). No other large study reported for Prevalence of Hepatitis B virus, Hepatitis C virus and HIV in blood donors in Pakistan. As table 1 shows Blood group distribution among blood donors while in table 2 and 3 prevalence of HbsAg among Blood donors different areas of KPK HBsAg positive samples found were 1.1% and HCV positive samples were 0.5% and table 4 the only case of HIV in both males and females of general population out of 8439 samples was found positive for both HBsAg and HCV antibodies. After the sample collection, its blood grouping process and then screened by Elisa for presence of DNA and RNA of HBV and HCV. In our study the causative factors of both Hepatitis B and Hepatitis C are mainly lack of proper health facilities, poor economic status and less public awareness about the transmission of major communicable diseases including HBV, HCV and HIV sharing of needles/syringes, blood transfusion, 307 Ahmed et al.

razors sharing by barbers, and sexual transmission. Further studies are needed to characterize HBV, HCV and HIV prevalent in KPK Pakistan at molecular level. Moreover, both host and viral factors associated with molecular and cellular mechanism of HBV and HCV infection in KPK population needs to be explored blood donors should be recognize the place an facilities whenever to donate the blood. Conclusion The prevalence of the HBV, HCV and HIV are increasing in the Pakistan due to less awareness, less safety and preventive measures. Though blood donors must take care while donating the blood to any blood bank of hospital or to charity organization laboratory, because lacking of facilities may lead to risk and become prone to these diseases. Further, blood receiving laboratory must screen donors for infectious diseases. It should be the prime responsibility of the technician of blood bank to screen the blood before any further process an report the suspects. The major risk factors that were identified are unawareness of the general population about signs and symptoms, risk factors, control measures and access to possible treatment and vaccination HBV, HCV and HIV and their availability also a main problem in the remote areas. References Ali M, Idrees M, Ali L, Hussain A, Rehman IU, Saleem S, Afzal S, Butt S. 2011. Hepatitis B virus in Pakistan: a systematic review of prevalence, risk factors, awareness status and genotypes. Virology journal 8(1), 1. Batool A, Bano K, Hussain R. 2008. Antenatal screening of women for hepatitis B and C in an outpatient department. Journal of the Dow University of Health Sciences 2(1), 32-35. Bernal W, Wendon J. 2013. Acute liver failure. New England Journal of Medicine 369(26), 2525-2534. Brown LD, Ashman D. 1996. Participation, social capital, and intersectoral problem solving: African and Asian cases. World development 24(9), 1467-1479. Choudhary I, Khan S. 2005. Samiullah. Should we do Hepatitis-B and C screening on each patient before surgery. Pak J Med Sci 21(3), 278-280. Ganem D, Schneider RJ. 2001. Hepadnaviridae: the viruses and their replication. Fields virology 2, 2923-2969. Hussain A, Mumtaz H, Aslam M, Abbas Z. 2015. Seroprevalence of transfusion based transmissible infections among clinically healthy donors in the community of Multan. Pakistan. J. Inf. Mol. Biol 3(2), 47-51. Ilyas M, Iftikhar M, Rasheed U. 2011. Prevalence of hepatitis B and hepatitis C in populations of college students in Gujranwala. Biologia (Pakistan) 57, 89-95. Khan A, Tareen AM, Ikram A, Rahman H, Wadood A, Qasim M, Khan K. 2013. Prevalence of HCV among the young male blood donors of Quetta region of Balochistan, Pakistan. Virology journal 10(1), 1. Khan E, Hasan R, Mehraj V, Nasir A, Siddiqui J, Hewson R. 2008. Co-circulations of two genotypes of dengue virus in 2006 out-break of dengue hemorrhagic fever in Karachi, Pakistan. Journal of Clinical Virology 43(2), 176-179. Khan MA, Islam S, Arif M. 2013. Transmission model of hepatitis b virus with the migration effect. BioMed research international 2013. Khanani RM, Hafeez A, Rab S, Rasheed S. 1988. Human immunodeficiency virus-associated disorders in Pakistan. AIDS research and human retroviruses 4(2), 149-154. Khattak M, Salamat N, Bhatti F, Qureshi T. 2002. Seroprevalence of hepatitis B, C and HIV in blood donors in northern Pakistan. J Pak Med Assoc 52(9), 398-402. 308 Ahmed et al.

Li HM, Wang JQ, Wang R, Zhao Q, Li L, Zhang JP, Shen T. 2015. Hepatitis B virus genotypes and genome characteristics in China. World J Gastroenterol 21(21), 6684-6697. Malik A, Butt S, Tariq W. 1996. Hepatitis C virus in perspective, where do we stand [editorial]. J Coll Physician Surg Pak 6, 136. Malik I, Legters L, Luqman M, Ahmed A, Qamar M, Akhtar K, Quraishi M, Duncan F, Redfield R. 1988. The serological markers of hepatitis A and B in healthy population in northern Pakistan. JPMA. The Journal of the Pakistan Medical Association 38(3), 69. Masood Z, Jawaid M, Khan RA, Rehman S. 2005. Screening for hepatitis B & C: a routine preoperative investigation. Pakistan Journal of Medical Sciences 21(4), 455. Muzaffar F, Hussain I, Haroon TS. 2008. Hepatitis C: the dermatologic profile. J Pak Assoc Dermatol 18, 171-181. Nathans R, Chu C-y, Serquina AK, Lu CC, Cao H, Rana TM. 2009. Cellular microrna and P bodies modulate host-hiv-1 interactions. Molecular cell 34(6), 696-709. Rai MA, Warraich HJ, Ali SH, Nerurkar VR. 2007. HIV/AIDS in Pakistan: the battle begins. Retrovirology 4(1), 22. Re VL, Kostman J. 2005. Management of chronic hepatitis C. Postgraduate medical journal 81(956), 376-382. Shah SA, Altaf A, Mujeeb SA, Memon A. 2004. An outbreak of HIV infection among injection drug users in a small town in Pakistan: potential for national implications. International Journal of STD and AIDS 15(3), 209. Sharma SD. 2010. Hepatitis C virus: molecular biology & current therapeutic options. Sultan F, Mehmood T, Mahmood MT. 2007. Infectious pathogens in volunteer and replacement blood donors in Pakistan: a ten-year experience. International journal of infectious diseases 11(5), 407-412. Sun CA, Chen HC, Lu CF, You SL, Mau YC, Ho MS, Lin SH, Chen CJ. 1999. Transmission of hepatitis C virus in Taiwan: prevalence and risk factors based on a nationwide survey. Journal of medical virology 59(3), 290-296. ur Rehman L, Ullah I, Ali I, Khan IA, Iqbal A, Khan S, Khan SH, Zaman KU, ullah Khan N, Swati ZA. 2011. Active hepatitis C infection and HCV genotypes prevalent among the IDUs of Khyber Pakhtunkhwa. Virology journal 8(1), 1. WHO. (2015). 14. Hepatitis B Fact sheet from http://www.who.int/mediacentre/factsheets/fs204/en/ Wright TL. 2006. Introduction to chronic hepatitis B infection. American journal of gastroenterology 101, S1. Yousaf A, Mohammad A, Ishaque M, Yousaf M. 1996. Can we afford to operate on patients without HBs Ag screening. J Coll Phys Surg Pak 9, 98-100. Yousfani S, Mumtaz F, Memon A, Memon MA, Sikandar R. 2006. Antenatal screening for hepatitis B and C virus carrier state at a university hospital. JLUMHS 5, 24-27. Zein NN. 2000. Clinical significance of hepatitis C virus genotypes. Clinical microbiology reviews 13(2), 223-235. 309 Ahmed et al.