COVID-19 saliva test (IMAGE)

University of Illinois at Urbana-Champaign, News Bureau

COVID-19 saliva test

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COVID-19 testing works best when administered multiple times per week as part of a routine screening program, such as the SHIELD Illinois saliva-testing protocol, a new study found.

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Photo by Fred Zwicky, University of Illinois

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Credit Fred Zwicky, University of Illinois

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