Helminths in tropical regions
|
|
- Verity Palmer
- 6 years ago
- Views:
Transcription
1 Helminths in tropical regions
2 Schistosoma spp. Blood flukes Schistosomiasis is one of the most widespread parasitic infections in humans Humans are the principal hosts for: Schistosoma mansoni, Schistosoma japonicum, Schistosoma mekongi, Schistosoma haematobium, and Schistosoma intercalatum Human schistosomiasis occurs in about 200 million people worldwide The disease is present in freshwater areas of Africa, Asia, and South America
3
4 Epidemiology
5 Epidemiology S. mansoni is present in Africa, South America, many islands in the Caribbean, and the Middle East, especially in the Nile Valley S. japonicum is present in China S. mekongi is present in Laos and Kampuchea in Southeast Asia. S. haematobium occurs in the Middle East and in parts of Africa S. intercalatum occurs in Africa
6 Schistosoma spp. Stages in the Life Cycle
7 1. Worms are about 1 to 2 cm in length and are of separate sex. It is estimated that the worm can survive for as long as 30 years. 2. S. mansoni, S. japonicum, and S. mekongi worms live in the terminal venules of the portal and mesenteric blood vessels. 3. S. haematobium lives within the vesical plexus around the bladder. 4. Half of the eggs pass through the bladder wall or the intestinal wall, out into the environment. 5. The remainder of the eggs stay locally or pass along the blood vessels. 6. Once eggs are passed into fresh water, they develop into motile miracidia that live within snails. 7. After 4 to 6 weeks, the miracidia evolve into cercariae, by which they can pass into the water and infect humans. 8. Infection in humans occurs through the skin, where the cercariae then migrate to the liver. 9. After 6 weeks of development, the adult worm descends into the portal veins or the vesical plexus. Life Cycle
8 Epidemiology
9 Cercaria Infective Stage
10 Schistosoma spp. Intermediate host
11 Symptoms A papular skin rash, lasting 24 to 48 hours, occurs in the location of the skin penetration by the cercariae. 4 to 8 weeks after infection, patients develop fevers with chills, headaches, and cough. This occurs during oviposition and is known as Katayama fever. It occurs due to the antigenic stimulation produced by the laying of the eggs. Symptoms regress after 2 to 4 weeks. During the chronic phase, which may last many years, patients may note abdominal pain and diarrhea. Over years, eggs that pass through the liver lead to granulomata formation and portal hypertension, and liver enlargement. Over many years, patients develop decompensated liver disease, ascites, and death due to liver failure or due to variceal bleeding. Eggs that bypass the liver in patients with portal hypertension can lodge in the lungs and produce pulmonary hypertension. Patients with S. haematobium pass eggs into the genitourinary system. Reaction to the eggs can lead to urinary obstruction, bladder dysfunction, and hematuria. Renal failure may occur as a late event. Eggs of S. japonicum can pass into vessels of the brain, causing seizures of vessels, or into the spinal cord, causing transverse myelitis.
12 Chronic schistosomiasis portal hypertension and ascites
13 China, 1960
14 Lab Dg Eggs can be isolated from the feces or urine of infected patients. Serologic tests are available to diagnose light infections. Liver function tests are frequently normal. Eosinophilia is observed in most cases. Anemia due to chronic blood loss is mild.
15
16 Treatment Praziquantel Metrifonate Oxamniquine
17 Prevention Improve sanitation so that eggs do not pass into areas where snails reside. Reduce snail populations with molluscicides. Prohibit swimming in contaminated waters.
18 FILARIAE
19 Filariae Filariasis connotes a wide range of tissue-dwelling nematodes within the superfamily Filaroidea. Organisms live within skin and connective tissue, lymphatics, and blood vessels. The adult worm may live in the host for over 20 years.
20 Filariae Frequent species Zoonotic species Wuchereria bancrofti Loa loa Onchocerca volvulus Brugia malayi Brugia timori Mansonella perstans Mansonella ozzardi Mansonella streptocerca Dirofilaria spp. Other Dracunculus medinensis
21 Filariae Wuchereria bancrofti The adult worm lives within the lymphatic system Enters the human host after the mosquito bite Present worldwide throughout the tropics and transmitted from mosquitos It is estimated that 250 million people are infected with worms that produce lymphatic filaria Disease that causes lymphatic destruction and elephantiasis is caused also by Brugia malayi, and Brugia timori Loa loa Enters the human host after a tabanid fly bite Worm migration leads to localized swelling, called Calabar swelling L. loa is present in West and Central Africa Onchocerca volvulus Enters the human host after a black fly bite Disease seen in South America and Africa Patients have inflammation of the skin and eye, which can lead to blindness. In Africa, the disease is termed river blindness
22 Life Cycle
23
24 Wuchereria bancrofti
25
26 Wuchereria bancrofti - Symptoms Patients often have recurrent episodes of lymphangitis and lymphadenitis. The femoral/inguinal nodes are often affected, and the epididymis and spermatic cord become enlarged. Over time, hydroceles develop that may be massive. Disease in the lower extremity can lead to elephantiasis. Other syndromes associated with lymphatic filariasis include monoarticular arthritis and tropical pulmonary eosinophilia.
27 Pathology
28 Pathology
29 Pathology
30 Pathology
31 Pathology HYDROCOELE
32
33 Lab dg Adult worms are infrequently recovered. Analysis of blood may reveal the microfilaria. Blood samples are often taken at midnight, when the concentrations of filaria are the highest!!!!!! Serologic diagnosis is available, yet cross-reacting antibodies are common. Eosinophilia is often absent.
34 Lab dg
35 Lab dg
36
37 Brugia malayi
38 Loa loa Life Cycle
39 Symptoms Adult worms may pass under the conjunctiva or through the skin. The worm often takes minutes to transverse vessels in the conjunctiva and then disappears. This organism is associated with very little pruritus. Calabar swelling is often seen in the wrists and ankles; swelling may last only hours but can be recurrent for years.
40
41 Loa loa Parasite under the skin Calabar swelling
42 Lab dg Diagnosis is clinical. Microfilaria can be isolated from the blood. Adult worms can be identified if they are isolated. Blood samples taken at noon have the best yield!!!!! Serologic diagnosis is not reliable.
43 Onchocerca volvulus Life Cycle
44 Symptoms Skin changes vary from papular rashes to extensive areas of hyperor hypopigmentation. Patients may have eczematoid dermatitis and thickening of the skin. Much pruritus is noted. Nodules in the subcutaneous regions reflect areas of inflammation in sites where worms live. They are nontender and may be many centimeters in diameter. Onchocerciasis can lead to blindness due to keratitis, optic atrophy, and choroidoretinitis.
45 Subcutaneous nodule
46 Dermatitis Hanging groin
47 Pathology
48
49 Lab Dg Parasitologic diagnosis is made by obtaining a minute, bloodless skin snip and observing the larvae migrating out of the skin under a microscope. Serology is also available but of little use in patients in endemic regions. Eosinophilia is present.
50 Dracunculus medinensis Essentials Dracontiasis, Guinea worm infection Dracunculiasis or guinea or Medina worm infection is caused by the tissue nematode Dracunculus medinensis. The worm has an indirect life cycle with small copepods as intermediate hosts. Epidemiology Guinea worm infection is endemic in the Middle East, and in central and western Africa, mainly in rural areas Control has been achieved through international efforts in many countries except in areas with social unrest. Eradication remains a distant goal! Infection occurs by ingestion of infected copepods with the drinking water Diagnostic strategies Clinical findings are characteristic and no special diagnostic strategy is needed.
51 Humans become infected by drinking water containing copepods which contain larve of D. medinensis. Following the ingestion, the copepods die and release the larve, which penetrate the host intestine and enter abdominal cavity. After maturation and copulation, the male worms die and the females ( cm) migrate in the subcutaneous tissues towards the skin surface. Approximately one year after infection, the female induces a blister on the skin, generally on the distal lower extremity, which ruptures. When this lesion comes into contact with water, the female worm emerges and releases larvae. Larvae are ingested by a copepod and after two weeks develop into infective larve. Ingestion of the copepods closes the cycle.
52 Epidemiology
53 Pathology
54 Pathology
55 Pathology
56 Prevention and Control The easiest personal control measure is to filtrate water before use Health education To improve the water supply of affected communities
Ex. Schistosoma species (blood flukes) and Fasciola hepatica.
TREMATODES: INTRODUCTION: Ex. Schistosoma species (blood flukes) and Fasciola hepatica. The life cycle of trematodes involves a sexual cycle in humans and asexual reproduction in freshwater snails (intermediate
More informationLecture 5: Dr. Jabar Etaby
Lecture 5: Dr. Jabar Etaby 1 2 Onchocerca volvulus (Blinding filariasis; river blindness) Microfilaria of Onchocerca volvulus, from skin snip from a patient seen in Guatemala. Wet preparation 3 Some important
More informationSchistosomiasis. Li Qian Department of Infectious Diseases, Huashan Hospital, Fudan University
Schistosomiasis Li Qian Department of Infectious Diseases, Huashan Hospital, Fudan University Topics Definition The Pathogen Epidemiology Etiology and Life Cycle Pathobiology Clinical manifestations Diagnosis
More informationWuchereria Morphology 10 cm 250 : m
Wucheria bancrofti Brugia malayi Lymphatic filariasis Lymphatic Filariasis 119 million infected Elephantiasis Manifestation of lymphatic filariasis Morphology I Adult: White and thread-like. Two rings
More informationI. Wuchereria bancrofti
Parasites that affect the Musculoskeletal system (continued) Filarial Worms - Nematodes. - Tissue parasites. - Require an intermediate host, which is usually an insect. - Do not lay eggs like other worms,
More informationParasitic Protozoa, Helminths, and Arthropod Vectors
PowerPoint Lecture Slides for MICROBIOLOGY ROBERT W. BAUMAN Chapter 23 Parasitic Protozoa, Helminths, and Arthropod Vectors Helminthic Parasites of Humans Helminths are macroscopic, multicellular, eukaryotic
More informationHelminths (Worms) General Characteristics: Eukaryotic, multicellular parasites, in the kingdom Animalia.
Parasite II Helminths (Worms) General Characteristics: Eukaryotic, multicellular parasites, in the kingdom Animalia. They are worm-like organisms that live and feed off living hosts, receiving nourishment
More informationDIAGNOSTIC SLIDE SESSION CASE 10
DIAGNOSTIC SLIDE SESSION CASE 10 B.K. Kleinschmidt-DeMasters, MD Disclosures: I am not a trainee Caterina made me do this CASE 2016-10: : The patient is a 5-year-old girl with Down syndrome, obstructive
More informationPARASITOLOGY CASE HISTORY #13 (BLOOD PARASITES) (Lynne S. Garcia)
PARASITOLOGY CASE HISTORY #13 (BLOOD PARASITES) (Lynne S. Garcia) An epidemiologic survey was undertaken in a small town in Myanmar (Burma) endemic for lymphatic filariasis. Blood specimens were collected
More informationThe Nematodes (Round worms)
The Nematodes (Round worms) - Small, round, elongated, Non-segmented worms with body cavity. They have separate sexes, usually don t need an I.H and do not multiply in human host because eggs don t hatch
More informationSchistosome life cycle.
Schistosomiasis infects approximately 200 million persons and kills approximately 280,000 annually. Most of the mortality comes from hepatic granulomas and fibrosis Schistosoma japonicum and Schistosoma
More informationChris McGuire Gillian Lieberman, MD. May Schistosomiasis. Chris McGuire, Harvard Medical School Year III Gillian Lieberman, MD
May 2003 Schistosomiasis Chris McGuire, Harvard Medical School Year III Overview Introduction to schistosomiasis Katayama syndrome Patient A Patient B Ultrasound detection Bladder infection Kidney infection
More informationParasitology Questions. Choose the best correct answer in the following statements
Parasitology Questions Choose the best correct answer in the following statements ١. A.. is the larval stage of a fluke that is covered with cilia and swims about seeking out a snail to serve as an intermediate
More information1.Nematodes. Parasitology/Helminths
1.Nematodes Parasitology/Helminths Helminths all helminths are relatively large (> 1 mm long); some are very large (> 1 m long). all have well-developed organ systems and most are active feeders. the body
More informationNeglected Tropical Diseases. David Mabey London School of Hygiene & Tropical Medicine
Neglected Tropical Diseases David Mabey London School of Hygiene & Tropical Medicine Disease Control strategy Elimination target Schistosomiasis MDA, health education, sanitation, snail control Yes (in
More informationDistrict NTD Training module 9 Learners Guide
District NTD Training module 9 Learners Guide Session 3: Diagnostic and laboratory tools for filarial worms, Soil- Transmitted Helminths and Schistosomiasis Key message addressed to communities: Community
More informationSigns and Symptoms of Parasitic Diseases
Signs and Symptoms of Parasitic Diseases Abdominal pain Entamoeba histolytica (amebic colitis, liver infection) Giardia lamblia Cryptosporidium Intestinal helminths (Ascaris, Strongyloides) Anisakis (symptoms
More informationSCHISTOSOMIASIS (BILHARZIA)
TREMATODES SCHISTOSOMIASIS (BILHARZIA) Hazem Al-Khafaji LECTURE-12- HISTORICAL FACTS... First described by German pathologist Theodore Maximilian Bilharz Bilharz performed autopsies on Egyptian patients
More informationProtozoans and Helminthes
Protozoans and Helminthes 1 Protozoans 2 3 4 5 6 Worm: Leishmania donovani General Family: Trypanosomes (Blood/tissue flagellates) Larvae or Adult Sketch of dermal, post-visceral kala-azar Life Cycle:
More information1. Parasitology Protozoa 4
Contents 1. Parasitology 1 Host Parasite Relationship 2 Mode of Transmission 2 2. Protozoa 4 Classification 4 Reproduction 5 Immunity 5 Pathogenesis 6 Laboratory Diagnosis 6 Treatment 8 Entamoeba 8 Classification
More informationClass Digenea (Trematoda) - The Flukes
Class Digenea (Trematoda) - The Flukes A. The information on the Platyhelminthes provided in the previous section should be reviewed, as it still applies. B. Adult trematodes are parasites of vertebrates.
More informationAscaridida. Ascaridoidea* Heterakoidea* Cosmocercoidea Subuluroidea Seuratoidea
Ascaridida Ascaridoidea* Heterakoidea* Cosmocercoidea Subuluroidea Seuratoidea Ascaridoidea Parasites in intestine of all classes of vertebrates. Aquatic cycles use invertebrate and vertebrate (fish) intermediate
More informationSchistosomiasis Alan Fenwick
Professor Department of Infectious Disease Epidemiology, Faculty of Medicine Imperial College, London 1 (Bilharzia) is caused by trematode worms which inhabit the blood vessels around the bladder or in
More informationAuthor(s): Katherine A. Perry (University of Michigan), RN, BSN 2012
Project: Ghana Emergency Medicine Collaborative Document Title: Parasitic Infections Author(s): Katherine A. Perry (University of Michigan), RN, BSN 2012 License: Unless otherwise noted, this material
More informationMedical Parasitology (EEB 3895) Lecture Exam #3
1 Name December 2016 Medical Parasitology (EEB 3895) Lecture Exam #3 Read through the exam once before you begin. Read the questions CAREFULLY; be certain to provide all of the information requested. The
More informationDownloaded from:
O Hara, GA; Elliott, AM (2016) HIV and Helminths - Not All Worms Created Equal? Trends in parasitology. ISSN 1471-4922 DOI: https://doi.org/10.1016/j.pt.2016 Downloaded from: http://researchonline.lshtm.ac.uk/3327115/
More informationUrinary schistosomiasis: a forgotten and challenging diagnosis
CASE REPORT Port J Nephrol Hypert 2018; 32(4): 369-373 Advance Access publication 31 October 2018 Urinary schistosomiasis: a forgotten and challenging diagnosis Ana C. Castro 1, André Garrido 1, Maria
More informationFILARIASIS AMONG ASYMPTOMATIC BLOOD DONORS IN GENERAL HOSPITAL, ODAN MARINA-LAGOS, NIGERIA
IMPACT: International Journal of Research in Applied, Natural and Social Sciences (IMPACT: IJRANSS) ISSN(E): 2321-8851; ISSN(P): 2347-4580 Vol. 2, Issue 6, Jun 2014, 177-182 Impact Journals FILARIASIS
More informationPlatyhelminthes (flat worms) as parasites of medical interest
Platyhelminthes (flat worms) as parasites of medical interest Type of parasites Protozoa Helminths Arthropods Nematodes Trematodes Cestodes Platyhelminthes A simplified classification of flat worms Platyhelminthes
More informationPARASITOLOGY CASE HISTORY 12 (HISTOLOGY) (Lynne S. Garcia)
PARASITOLOGY CASE HISTORY 12 (HISTOLOGY) (Lynne S. Garcia) A 54-year-old man originally from Vietnam was admitted to the hospital for complaints of upper abdominal pain and liver enlargement. The bile
More informationIV. Important trematodes (Chapters 16 18)
IV. Important trematodes (Chapters 16 18) A. Placed in the subclass Digenea 1. Flukes 2. Digenea refers to having an alternation of hosts in the life cycle B. Characteristics 1. Cuplike suckers without
More informationThe Filarial Dance Sign in Scrotal Filarial Infection
The Filarial Dance Sign in Scrotal Filarial Infection Poster No.: C-0232 Congress: ECR 2015 Type: Authors: Keywords: DOI: Educational Exhibit P. P. Suthar 1, N. Patel 2 ; 1 Vadodara, Gu/IN, 2 Vadodara,
More informationClinical and Laboratory Aspects of Filariasis
CLINICAL MICROBIOLOGY REVIEWS, Jan. 1989, p. 39-50 Vol. 2, No. 1 0893-8512/89/010039-12$02.00/0 Copyright 1989, American Society for Microbiology Clinical and Laboratory Aspects of Filariasis JAYASRI NANDURI
More informationIntroduction Parasitology. Parasitology Department Medical Faculty of Universitas Sumatera Utara
Introduction Parasitology Parasitology Department Medical Faculty of Universitas Sumatera Utara Parasite Definition: Dependence of one living organism on another 2 CLASSIFICATION (based on habitat) t)
More informationSchistosomiasis and Neglected Tropical Diseases Control
Schistosomiasis and Neglected Tropical Diseases Control S C I Children Boys 7 years Wanseko P/S Vector Control Division * Ministry of Health * Tel: 41 251 927 * Fax: 41 346 885 * Professor Joanne P. Webster
More informationMany of you asked about this topic
Many of you asked about this topic Water borne disease: The largest water quality problem in developing countries. CEE 3510 Environmental Quality Engineering According to: Chemical and Engineering News
More informationSEA-CD-275. Frequently asked questions
SEA-CD-275 Frequently asked questions on LYMPHATIC FILARIASIS (ELEPHANTIASIS) World Health Organization 2013 All rights reserved. Requests for publications, or for permission to reproduce or translate
More informationAbstract. Assistant Professor, Department of Microbiology and Immunology. Uniformed Services University of the Health Science
Abstract Title of Dissertation: Evaluation of allergy effector cell function: suppression of basophils in chronic helminth infections David Larson, Doctor of Philosophy, 2011 Thesis directed by: Edward
More informationBlood Smears Only 5 February Sample Preparation and Quality Control 13B A
NEW YORK STATE Parasitology Proficiency Testing Program Blood Smears Only 5 February 2013 The purpose of the New York State Proficiency Testing Program in the category of Parasitology Blood Smears Only
More informationIntroduction. Causes. Roundworms. Worms. Flatworms. How Flatworms are transmitted. Fast fact. Fast fact
Module 5 Worms MODULE 5 INTRODUCTION Introduction Worms Worms or helminths are parasites that live on or in human or animal hosts and draw nutrients from their host 1. Worms are multi-cellular, have complex
More informationDetection Rate of Urinary Schistosomiasis in El khiar Villages White Nile State, Sudan
Pyrex Journal of Biomedical Research Vol 3 (5) pp. 34-38 June, 2017 Author(s) retain the copyright of this article http://www.pyrexjournals.org/pjbr ISSN: 2579-1222 Copyright 2017 Pyrex Journals Full Length
More informationL:7, L:8 Parasitology
L:7, L:8 Parasitology 2.Fasciola hepatica Adult The adult Fasciola hepatica worm is flattened, leaf like shape, equipped with shoulders, somewhat oblong. Adult Fasciola hepatica measuring 3cm by 1cm in
More informationEarly View Article: Online published version of an accepted article before publication in the final form.
Early View Article: Online published version of an accepted article before publication in the final form. Journal Name: Journal of Case Reports and Images in Medicine Type of Article: Clinical Images Title:
More informationPARASITOLOGY CASE HISTORY 7 (HISTOLOGY) (Lynne S. Garcia)
PARASITOLOGY CASE HISTORY 7 (HISTOLOGY) (Lynne S. Garcia) A 55 year-old female presented with cervical carcinoma. Her history indicated she had lived most of her life in Africa. CT scans of the pelvis
More informationThe Struggle with Infectious Disease. Lecture 5
The Struggle with Infectious Disease Lecture 5 Tropical Diseases Life and infectious disease began in the rift valley/rain forest of Eastern Africa Peoples migrated North to temperate regions Tropical
More informationCerebral Schistosomiasis Caused by Schistosoma mansoni: a Case Report with Clinical Analysis
Iranian J Parasitol: Vol. 4, No.2, 2009, pp.61-66 Iranian J Parasitol Open access Journal at http:// ijpa.tums.ac.ir Tehran University of Medical Sciences Publication http:// tums.ac.ir Iranian Society
More informationInternational Journal of Allied Medical Sciences
International Journal of Allied Medical Sciences and Clinical Research (IJAMSCR) IJAMSCR Volume 3 Issue 3 July-Sep- 2015 www.ijamscr.com ISSN: 2347-6567 Case Report Medical research Schistosoma in prostate-
More informationIntroduction to Parasitic Helminths
Introduction to Parasitic Helminths Lecture 4 Medical Parasitology Course (MLAB 362) Dr. Mohamed A. El-Sakhawy 1 Parasitic Helminths Eukaryotic, multicellular animals that usually have digestive, circulatory,
More informationParasitic Protozoa, Helminths, and Arthropod Vectors
PowerPoint Lecture Slides for MICROBIOLOGY ROBERT W. BAUMAN Chapter 23 Parasitic Protozoa, Helminths, and Arthropod Vectors Parasitic Diseases Protozoan and helminthic parasites are emerging as serious
More informationSchistosomiasis (Bilharzia, Snail fever) Trematode (Fluke)
Schistosomiasis (Bilharzia, Snail fever) Trematode (Fluke) Sina Helbig*, Alia Tayea, Akre M Adja, Neil Arya ** Prepared as part of an education project of the Global Health Education Consortium and collaborating
More informationHelminth infections a review
Helminth infections a review Farrer F, BPharm Amayeza Info Centre Abstract Parasitic worms are among the most common human infections in the world. Most patients are unaware of the infection. Adherence
More informationCreate the Following Chart in your notebook. Fill in as you go through each one.
Diseases of Africa Create the Following Chart in your notebook. Fill in as you go through each one. History of disease? Affected Population? How do you catch the disease? Symptoms? Prevention / Treatment?
More informationTrematodes General characteristics:-
Trematodes General characteristics:- 1- They are commonly referred to as flukes. 2- Life cycle have 3 morphologica form:- a- Egg b- Multiple larval stage c- Adult worm 3- The eggs, which are the primary
More informationInfectious Disease Challenges in Refugees and Immigrants
Infectious Disease Challenges in Refugees and Immigrants Presented by: Elizabeth D. Barnett, M.D. Wed. May 9, 2012 1:00-2:30pm EDT *Please listen via computer speakers or headphones Chat to Chairperson
More informationDiagnosis of Infectious Agents in the Peripheral Blood Smear. Meredith Reyes, MD July 24, 2006
Diagnosis of Infectious Agents in the Peripheral Blood Smear Meredith Reyes, MD July 24, 2006 Pathogens detected in PS Bacteria Neisseria meningitidis Streptococcus pneumoniae Staphylococcus sp. Bartonella
More information~Trichinella Spiralis:
Musculoskeletal System **Today we are going to talk about the parasites that affect the musculoskeletal system ~Trichinella Spiralis: It s a small nematode that measures to about 2-3mm in length. In general
More informationParasites transmitted by vectors
Parasites transmitted by vectors Often very specific vector-parasite relationships Biomphalaria sp. - Schistosoma mansoni Anopheles sp. Plasmodium falciparum Simulium sp. Onchocerca volvulis Some more
More informationNEGLECTED TROPICAL DISEASES AND ANEMIA - WHAT DO WE KNOW
NEGLECTED TROPICAL DISEASES AND ANEMIA - WHAT DO WE KNOW 18 October, 2016- Accelerated Reduction Efforts on Anaemia COP Webinar Yaobi Zhang Contents 1. What are the neglected tropical diseases (NTDs)?
More informationParasitology. Helminthology (Helminths)
Parasitology Protozoology (Protozoa) Helminthology (Helminths) Entomology (Arthropodes) Platyhelminthes (flat worms) Nematheminthes (round worms) Trematodes Nematodes Cestodes Collection of the specimens
More informationEDO UNIVERSITY IYAMHO
EDO UNIVERSITY IYAMHO FACULTY OF SCIENCE SEMINAR SERIES INTESTINAL HELMINTHIASIS: SOIL TRANSMITTED INFECTIONS. PRESENTED BY Mrs. Habibat Joy, Ozemoka 3rd August, 2018 INTRODUCTION Intestinal helminthiasis
More informationPulmonary Schistosomiasis Imaging Features
Pulmonary Schistosomiasis Imaging Features Niemann T 1*, Marti HP 2, Duhnsen SH 1, Bongartz G 1 1. University Hospital Basel, Department of Radiology, Basel, Switzerland 2. Swiss Tropical and Public Health
More informationDisease Transmission Methods
Disease Transmission Methods In epidemiology, transmission simply means any method by which an infectious agent is spread from one host to another. Knowing the type of pathogen often, but not always, identifies
More informationSushi Worms Diagnostic Challenges
Department Medicine Diagnostic Centre Swiss TPH Winter Symposium 2017 Helminth Infection from Transmission to Control Sushi Worms Diagnostic Challenges Beatrice Nickel Fish-borne helminth infections Consumption
More informationNews and Notes. Parasitology Comprehensive 5 February Sample Preparation and Quality Control. 13 A Helminthes Only
NEW YORK STATE Parasitology Proficiency Testing Program News and Notes Recent reports in the literature have indicated a high rate of Cryptosporidium sp. false positive associated with Rapid Cartridge
More informationUltrasound in Tropical Diseases
Ultrasound in Tropical Diseases A Curriculum W. Ted Kuhn, MD, RDMS, DTMTH Fellow of the American Society of Tropical Medicine and Hygiene For the Working Group Goals and Objectives Present a body of knowledge
More informationRadiology Corner. History. Summary of Imaging Findings. Discussion. Schistosomiasis Japonicum Involving the Liver and Colon
Radiology Corner Schistosomiasis Japonicum Involving the Liver and Colon Guarantor: Capt Justin Q. Ly, MC, USAF 1 Contributors: Capt Justin Q. Ly, MC, USAF 1 ; Col Timothy G. Sanders, MC, USAF (Ret.) 2
More informationLecture 3: Nematodes 3 Blood & Tissue Nematodes #AsturiaNOTES Parasitology: Angiostrongylus cantonensis to Loa loa
A. Angiostrongylus cantonensis Rat Lungworm Infection in rats and bandicoots in the tropics and subtropics through traveling as stowaways on ships Endemic in Louisiana (USA) wildlife and kills zoo animals
More informationTrichinellosis. By Michelle Randall
Trichinellosis By Michelle Randall Disease Name: Trichinellosis Etiological Agent: Trichinella spiralis Transmission: People acquire Trichinellosis by consuming raw or undercooked meat infected with the
More informationIncidental Presentation of Microfilaria in Cytological Smears at Different Sites with Coexisting Unusual Pathology
Original Article DOI: 10.21276/APALM.1974 Incidental Presentation of Microfilaria in Cytological Smears at Different Sites with Coexisting Unusual Pathology Ritu Sharma 1 *, Abha Mishra 1, Brig. Nikhilesh
More informationUnusual presentation of Filariasis in a tertiary care hospital in Western Rajasthan: A case report
ISSN: 2319-7706 Volume 4 Number 1 (2015) pp. 685-689 http://www.ijcmas.com Original Research Article Unusual presentation of Filariasis in a tertiary care hospital in Western Rajasthan: A case report Swati
More informationIntestinal Parasites. James Gaensbauer MD, MScPH Fellow, Pediatric Infectious Diseases University of Colorado School of Medicine November 12, 2012
Intestinal Parasites James Gaensbauer MD, MScPH Fellow, Pediatric Infectious Diseases University of Colorado School of Medicine November 12, 2012 Outline Parasites 101 Global Burden of Disease An Evolutionary
More informationBlood Smears Only 19 May Sample Preparation and Quality Control
NEW YORK STATE Parasitology Proficiency Testing Program Blood Smears Only 9 May 205 The purpose of the New York State Proficiency Testing Program in the category of Parasitology - Blood Smears Only is
More informationCASE STUDY 4: DEWORMING IN KENYA
CASE STUDY 4: DEWORMING IN KENYA Addressing Threats to Experimental Integrity This case study is based on Edward Miguel and Michael Kremer, Worms: Identifying Impacts on Education and Health in the Presence
More informationDiagnosis and recommended treatment of helminth infections Allifia Abbas BSc, MB ChB and William Newsholme MSc, MRCP, DTM&H
Drug review Worms Diagnosis and recommended treatment of helminth infections Allifia Abbas BSc, MB ChB and William Newsholme MSc, MRCP, DTM&H Skyline Imaging Ltd A number of worm infections are seen in
More informationTapeworm Infection. Tapeworm
Tapeworm Infection Introduction Tapeworm infection is caused by ingesting food or water that is contaminated with tapeworm eggs or larvae. Larvae are newly hatched tapeworms. A tapeworm may attach itself
More informationThe impact of density-dependent processes on the eradicability of parasitic diseases
The impact of density-dependent processes on the eradicability of parasitic diseases Hans Peter Duerr Martin Eichner Klaus Dietz Department of Medical Biometry University of Tübingen Oberwolfach 2004 1/12
More informationInvest in the future, defeat malaria
Invest in the future, defeat malaria Malaria is caused by parasites from the genus Plasmodium, which are spread to people by infected mosquitoes. There are five species of Plasmodium that can infect humans.
More informationDavid Bruce Conn. Berry College One Health Center Harvard University Museum of Comparative Zoology
David Bruce Conn Berry College One Health Center Harvard University Museum of Comparative Zoology From Yang et al, 2012. Global Distribution of Outbreaks of Water Associated Infectious Diseases. PLoS/Neglected
More informationNematodes (roundworms)
Intestinal human nematodes Dr Mohammed Abdulla FIBMS (general medicine), FIBMS (G&H), MRCP SCE (G&H). Medically-important nematodes Nematodes (roundworms) There are >60 species of nematodes (roundworms)
More information29/11/2013. And eosinophilia after a stay in the tropics? Should we investigate? Should we investigate?
And eosinophilia after a stay in the tropics? Rembert Mertens October 24th, 2013 Joint Symposium with the Scientific Study Group for Travel medicine Should we investigate? Diagnosis of tropical conditions
More informationGiardia lamblia (flagellates)
Giardia lamblia (flagellates) Dr. Hala Al Daghistani Giardia lamblia (Giardia duodenalis or Giardia intestinalis) is the causative agent of giardiasis and is the only common pathogenic protozoan found
More informationPARASITOLOGY INTRODUCTION
PARASITOLOGY INTRODUCTION DEFINITION Parasite means : one who eats at the table of another. Differs from bacteria and viruses in their complex life cycles, intermediate hosts and chronicity. Evolved to
More informationIntroduction to Multicellular Parasites
Harriet Wilson, Lecture Notes Bio. Sci. 4 - Microbiology Sierra College Introduction to Multicellular Parasites Multicellular parasites are eukaryotic organisms in the Kingdom Animalia (like us). Though
More informationWATER AND HEALTH (Water Induced Diseases)
WATER AND HEALTH (Water Induced Diseases) Dr. H.S. Ramesh Professor of Environmental Engineering S.J. College of Engineering, Mysore 570 006 In human body, water is of utmost physiological importance and
More informationDiagnosis and management of helminth infections
Drug review Worms Diagnosis and management of helminth infections William Newsholme MSc, MRCP, DTM&H Skyline Imaging Ltd A number of worm infections are seen in the UK, mostly acquired through foreign
More informationPARASITE MRS. OHOUD S.ALHUMAIDAN
PARASITE MRS. OHOUD S.ALHUMAIDAN OUTLINE Intruduction Important terms classification of hosts Mode of parasitic infections General Classification of parasites Specific Classification of parasites Protozoa
More informationMalaria parasites Malaria parasites are micro-organisms that belong to the genus Plasmodium. There are more than 100 species of Plasmodium, which can infect many animal species such as reptiles, birds,
More informationDiagnosis and recommended treatment of helminth infections
DRUG REVIEW n Diagnosis and recommended treatment of helminth infections Allifia Abbas BSc, MRCP, Paul Wade MSc, BPharm and William Newsholme MSc, FRCP, DTM&H A number of worm infections are seen in the
More informationThe Schistosomiasis Control Initiative (SCI) Professor Alan Fenwick
The Schistosomiasis Control Initiative (SCI) Professor Alan Fenwick Department of Infectious Disease Epidemiology School of Public Health Imperial College (St Mary s campus) Established in 2002 SCI assists
More informationAn Operational Research on Annual Mass Drug Administration (MDA) For Elimination of Lymphatic Filariasis in Medak District, Telangana
Original Research Article An Operational Research on Annual Mass Drug Administration (MDA) For Elimination of Lymphatic Filariasis in Medak District, Telangana P. Samuel Rajkumar 1*, Tukaram Kishanrao
More informationPARASITOLOGY - CHAPTER FOUR NEMATODES (Round Worms)
Dr Abdul Ghaffar MBIM 650/720 Medical Microbiology Reading: Medical Microbiology, Murray et al. (3rd ed.), pp 646-660 PARASITOLOGY - CHAPTER FOUR NEMATODES (Round Worms) All life cycle diagrams in this
More informationParasitic nematodes in humans : exploring the hostparasite dynamic through historical, biological, and public health evaluations of infection.
University of Louisville ThinkIR: The University of Louisville's Institutional Repository Electronic Theses and Dissertations 5-2012 Parasitic nematodes in humans : exploring the hostparasite dynamic through
More informationDOWNLOAD OR READ : TROPICAL INFECTIOUS DISEASES SECOND EDITION PDF EBOOK EPUB MOBI
DOWNLOAD OR READ : TROPICAL INFECTIOUS DISEASES SECOND EDITION PDF EBOOK EPUB MOBI Page 1 Page 2 tropical infectious diseases second edition tropical infectious diseases second pdf tropical infectious
More information44th Myanmar Health Research Congress
44th Myanmar Health Research Congress Early Detection of Lymphatic Disturbance in Adolescent Infected with Lymphatic Filariasis Jan Douglass 1, Susan Gordon 1, Patricia Graves 1, Ben Dickson 1, Dr Ni Ni
More informationPARASITOLOGY CASE HISTORY #82 (Lynne S. Garcia)
PARASITOLOGY CASE HISTORY #82 (Lynne S. Garcia) ***Reminder: Slides are copyrighted and cannot be copied for publication. A 57 year old male was seen at a local clinic with a year-long history of productive
More informationWest Nile Virus in Maricopa County
West Nile Virus in Maricopa County Maricopa County Department of Public Health Office of Epidemiology July 2009 January 1, 2008 December 31, 2008 Commentary West Nile virus (WNV) is a mosquito-borne virus
More informationUrinary Schistosomiasis: Urological manifestations &complications. Dr MJ Engelbrecht Department of Urology
Urinary Schistosomiasis: Urological manifestations &complications Dr MJ Engelbrecht Department of Urology Clinical presentation Three clinical stages Swimmer s itch Acute schistosomiasis Chronic schistosomiasis
More information