
Despite progress on a vaccine, there is no guarantee it will be effective, experts said, and testing and contact tracing are still short of the levels needed.
By BY KATIE THOMAS, DENISE GRADY, MICHAEL MASON AND SHEILA KAPLAN from NYT Health https://ift.tt/3crmrIB
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Coronavirus (2019-nCoV), Shutdowns (Institutional), Quarantines, Tests (Medical), Medicine and Health, Vaccination and Immunization, Epidemics, United States Politics and Government
Source New York Times
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