Fast Five Quiz: Influenza During the COVID-19 Pandemic

Michael Stuart Bronze, MD


November 15, 2022

According to the CDC, older children and adults who have influenza are likely most contagious during the first 3-4 days of their illness. Alternatively, those with COVID-19 are likely to be most infectious 1 day before symptoms begin. COVID-19 is more likely to be spread by those who are asymptomatic, although both diseases may be spread by symptomatic individuals. The onset of influenza symptoms is typically 1-4 days after infection, whereas COVID-19 symptoms may develop 2-5 days, but as long as 14 days, after infection.

Seasonal influenza and COVID-19 share many symptoms:

  • Fever

  • Sore throat

  • Fatigue

  • Chills

  • Cough

  • Shortness of breath or difficulty breathing

  • Runny or stuffy nose

  • Muscle pain or body aches

  • Headache

  • Vomiting

  • Diarrhea

Learn more about COVID-19.