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Rethinking COVID-19 Testing Strategy
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Virological tests look for the SARS-Cov-2 antigen (RT-PCR, LAMP assays or point-of-care tests like the TrueNAT tests), a piece of the virus RNA in the patient’s bloodstream. As States in India increase testing efforts, there is growing attention to the test positivity rates, with the assumption that a higher test positivity rate is a sign of appropriate testing. Sound epidemiology and public health practice indicate that it is time to recalibrate our testing priorities, and transparently share results to promote science-based decision-making We must continue to accelerate testing, under no circumstances be punitive about testing, and rapidly expand focus to testing asymptomatic first and second degree contacts of known cases.