Study: Incubation times of SARS-CoV-2 variants fell over time - CIDRAP

The average for all variants was 6.6 days, but it ranged from 5.0 days for Alpha to 3.4 days for Omicron.

As the dominant circulating strain of SARS-CoV-2 evolved from Alpha to Omicron, the incubation period from infection to symptoms or first positive COVID-19 test result gradually decreased, from 5 to … [+3120 chars]

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