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.
more
HIV testing programmes need to ensure that all clients who test for HIV are provided with correct diagnoses. The accuracy of HIV testing is critical to prevent misdiagnosis, as the consequences of giving an incorrect test result can be serious for clients, HIV testing services, HIV programmes and pu...blic health.
With the evolution of global HIV epidemiology, HIV testing approaches must also evolve to maintain accuracy and efficiency in population-level diagnosis. Reports suggest that misdiagnosis of HIV status may occur when suboptimal testing algorithms and out-of-date testing strategies are used. As a result of changing epidemiology and declining HIV positivity in testing, WHO recommends all countries use a standard three-test strategy to ensure a PPV of at least 99%, minimizing false-positive misdiagnosis. The WHO-recommended HIV testing strategy, along with quality assurance measures such as retesting to verify a positive diagnosis prior to initiation of HIV treatment, is cost-effective as it prevents misdiagnosis and unnecessary initiation of costly lifelong treatment.
This implementation guide provides practical advice on switching to a three-test strategy and instituting other measures that can help national HIV programmes deliver high-quality, accurate HIV testing services and ensure that misdiagnosis is minimized.
more
This Guidance was developed in response to the increase in HIV-related human rights crises and the shrinking civic space for rights-related responses to HIV in recent years across the world. This document builds upon existing guidance documents, offering updated guidance for country-based United Nat...ions staff (United Nations Country Teams) and partners to use their respective mandates to coordinate effective responses to human rights-related crises within the framework of the Resident Coordinator system, the 2030 Agenda for Sustainable Development, global HIV and human rights strategies and frameworks.
more
These guidelines provide a framework for effective action to facilitate access to safe and ethical
testing services for different population groups. The implementation of the a comprehensive
approach, known as HIV Testing Services (HTS) is cardinal as an effective package of services
that diminis...hes the impact of the HIV epidemic in our country. All forms of HTS adhere to
the 5Cs: Confidentiality, Counselling, Consent, Correct results and Connection, or linkage
to care, with all based within a human right context. In addition to the 5Cs, however, the
MOHCDGEC emphasizes the use of a variety of approaches to HTS that will reduce the
number of missed opportunities. These include Provider-Initiated Testing and Counselling
testing, Couple counselling and testing, Index testing, and infant and children counselling and
testing in alignment to the revised WHO guidelines. Furthermore, these guidelines accentuate
on the continual provision of integrated HTS service at all levels of the public and private
health service delivery system.
The HTS Providers, managers and other stakeholders
more
Accelerating HIV prevention to reduce new infections by 75%
The way Forward
Executive Summary
This report analyses the intersection of HIV, COVID-19 and public debt in developing countries. The collision between COVID-19 and a crippling debt crisis have reversed decades of progress - putting present and future investments in health and HIV at risk. Pragmatic options to address the pandemic t...riad are proposed.
more
Supplement Article
www.jaids.com J Acquir Immune Defic Syndr Volume 78, Supplement 1, August 15, 2018
PLOS ONE | https://doi.org/10.1371/journal.pone.0186835 October 30, 2017