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COVID-19 relapse: Three theories can explain worrying trend

Quoted: “The most likely explanation is that people have simmering virus replication for an unusually long time and this can occasionally result in late reactivation. Most available data stated that the length of virus detection varies from person to person, so it isn’t surprising that some people might continue to produce the virus and get sick,” says Dave O’ Connor, professor at the Department of Pathology and Laboratory Medicine, University of Wisconsin-Madison.