Anonymous
ja answered 3 years ago
The incubation period for COVID-19 is thought to be within 14 days following exposure, with most cases occurring approximately four to five days after exposure. (See “COVID-19: Clinical features”, section on ‘Incubation period’.)
What are some of the important SARS-CoV-2 variants?
Multiple SARS-CoV-2 variants are circulating globally. Some variants contain mutations in the surface spike protein, which mediates viral attachment to human cells and is a target for natural and vaccine-induced immunity. Thus, these variants have the potential to be more transmissible, cause more severe disease, and/or evade natural or vaccine-induced immune responses. Two of the more important circulating variants are:
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