claim: blood-based culture of sars-cov-2 informs infectivity and safe de-isolation assessments during covid-19
evidence_1: conclusion: sars-cov-2 culture may be used as a surrogate marker for infectivity and inform de-isolation protocols.", "by contrast, the isolation of sars-cov-2 using cell-based culture likely indicates infectivity, but there are limited data on the correlation between sars-cov-2 culture and pcr.")