SARS-CoV-2 viral culturing at CDC
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      SARS-CoV-2, the virus that causes COVID-19, was isolated in the laboratory and is available for research by the scientific and medical community. One important way that CDC has supported global efforts to study and learn about SARS-CoV-2 in the laboratory was by growing the virus in cell culture and ensuring that it was widely available. Researchers in the scientific and medical community can use virus obtained from this work in their studies. CDC is using SARS-CoV-2 in various ways, including the following: • To test serum collected from people who have recovered from COVID-19 to look for antibody that might block viral infections • To determine when people shed live virus during the disease. This information has shaped CDC’s guidance on when to discontinue transmission-based precautions for patients. SARS-CoV-2 strains supplied by CDC and other researchers can be requested, free, from the Biodefense and Emerging Infections Research (BEI) Resources Repository by established institutions that meet BEI requirements. These requirements include maintaining appropriate facilities and safety programs, as well as having the appropriate expertise. BEI supplies organisms and reagents to the broader community of microbiology and infectious disease researchers.
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