Policy
July 2012
Working Paper No. 3
Bull World Health Organ 2015;93:457–467 | doi: http://dx.doi.org/10.2471/BLT.14.147215
UNAIDS/WHO Working group
HIV/AIDS and STI surveillance 2015 / Reference
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 Reports suggest that misdiagnosis of HIV status may occur when suboptimal testing algorithms and out-of-date testing strategies are used.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.
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The only way to prevent future Ebola epidemics of this magnitude is to address the fundamental social and political vulnerabilities that have allowed the virus to flourish, such as weak health systems and local services, poor governance, chronic poverty, and a legacy of conflict and social divisions
The strategy focuses on mobilizing and coordinating partners, experts and resources to help countries enhance surveillance of the Zika virus and disorders that could be linked to it, improve vector control, effectively communicate risks, guidance and protection measures, provide medical care to thos...e affected and fast-track research and development of vaccines, diagnostics and therapeutics
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Journal of HIV and Human Reproduction: Year : 2015, volume : 3, Issue : 2, Page : 47-55
Sub-Saharan African Journal of Medicine: Year : 2014 | Volume : 1 | Issue : 1 | Page : 1-14
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