bioRxiv / medRxiv
open access
CC BY 4.0
Diagnostic performance, implementation fidelity, and costs of the World Health Organization three-test HIV testing strategy in Malawi: a national retrospective evaluation
BackgroundIn 2019, WHO recommended three consecutive reactive serological test results for HIV diagnosis to reduce false-positive diagnoses. Malawi changed from a two-test to a three-test strategy in 2022 as HIV test positivity declined. We assessed diagnostic performance, implementation fidelity, a
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