![]() ![]() The brief discusses what tests can be used for each goal, as well as practical implementation issues with testing strategies, including the opportunities and risks of using digital tools in this context.Ī key question behind any strategy to ease confinement restrictions and reopen economic activities is how to avoid a new spread of the SARS‑CoV‑2 virus that would necessitate further lockdowns. This brief discusses how testing strategies can be used to achieve three main goals: 1) suppressing the resurgence of local outbreaks 2) identifying people who have developed some form of immunity and can safely return to work and 3) gaining intelligence on the evolution of the epidemic, including on when a threshold for herd immunity has been reached. Crucially, quick suppression of infections requires testing more people to identify who is infected tracking them to make sure they do not spread the disease further and tracing with whom they have been in contact. If all confinement restrictions are lifted before a vaccine or effective treatments are developed without other measures to suppress new infections, the infection rate is expected to rebound rapidly. ![]() ![]() This policy brief discusses the role of testing for COVID‑19 as part of any plan to lift confinement restrictions and prepare for a possible new wave of viral infections.
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