Participant Manual
February 2011
Edition 3.0
Epidemiology
Chagas disease (American trypanosomiasis) is caused by the protozoan parasite Trypanosoma cruzi, and transmitted to humans by infected triatomine bugs, and less commonly by transfusion, organ transplant, from mother to infant, and in rare instances, by ingestion of contaminated food or... drink.1-4 The hematophagous triatomine vectors defecate during or immediately after feeding on a person. The parasite is present in large numbers in the feces of infected bugs, and enters the human body through the bite wound, or through the intact conjunctiva or other mucous membrane.
Vector-borne transmission occurs only in the Americas, where an estimated 8 to 10 million people have Chagas disease.5 Historically, transmission occurred largely in rural areas in Latin America, where houses built of mud brick are vulnerable to colonization by the triatomine vectors.4 In such areas, Chagas disease usually is acquired in childhood. In the last several decades, successful vector control programs have substantially decreased transmission rates in much of Latin America, and large-scale migration has brought infected individuals to cities both within and outside of Latin America.
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HIV & AIDS Treatment in Practice No.202
PQDx 0144-043-00 WHO
PQDx Public Report
November/2016, version 4.0
12-13 December 2016
Global Action Plan on HIV Drug Resistance - Webinars 12-13 December 2016
Technical Brief
HIV patient monitoring and case surveillance
WHO/HIV/2017.11
Health Benefits and Associated Risks
Accessed: 02.03.2020
The goal of this Global Action Plan is to articulate synergistic actions that will be required to prevent HIVDR from undermining efforts to achieve global targets on health and HIV, and to provide the most effective treatment to all people living with HIV including adults, key populations, pregnant ...and breastfeeding women, children and adolescents. The Global Action Plan has five strategic objectives: 1) prevention and response; 2) monitoring and surveillance; 3) research and innovation; 4) laboratory capacity; and 5) governance and enabling mechanisms.
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Vreeman RC et al. Journal of the International AIDS Society 2017, 20(Suppl 3):21497 http://www.jiasociety.org/index.php/jias/article/view/21497 | http://dx.doi.org/10.7448/IAS.20.4.21497