SARS-CoV-2: the viral shedding vs infectivity dilemma
Type
ArticleAbstract
Viral shedding has been demonstrated up to 63 days after symptom onset. The distinction between viral shedding and infectivity is important for the development of quarantine guidelines and policy.There is an earlier peak in viral load in SARS-CoV-2 than seen in SARS. Quantitative viral loads are higher in the nose than the throat. It is likely that asymptomatic and presymptomatic transmission is occurring.Viral shedding has been demonstrated up to 63 days after symptom onset. The distinction between viral shedding and infectivity is important for the development of quarantine guidelines and policy.There is an earlier peak in viral load in SARS-CoV-2 than seen in SARS. Quantitative viral loads are higher in the nose than the throat. It is likely that asymptomatic and presymptomatic transmission is occurring.
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Date
2020Share