The COVID-19 incubation period, or how long it takes to get COVID symptoms after exposure, lasts about two to 14 days. The average incubation period is five days. People are typically infectious ...

Unlike common foodborne diseases, the incubation period can be long. The first incubation periods were documented during a large listeriosis outbreak published in 1987 by Linnan and al.

Medically reviewed by Kashif J. Piracha, MD The flu incubation period is the time from when you come into contact with the flu virus to when you develop symptoms. On average, the flu incubation ...