Differences between RSV, the flu, COVID-19 or a cold

It can be difficult to determine whether an illness is RSV, the flu, a cold, or COVID-19. But Dartmouth Health Children’s General Pediatrics Section Chief, Susanne Tanski MD, MPH says differences between them can help you determine how best to care for your child. For starters, the flu comes on quickly as a severe respiratory infection, causing your child to feel very sick. But RSV and a cold usually come on gradually, maybe as a tickle or a scratch in the throat, or as a little runny nose. The only sure way to diagnose the virus is to get a test, but doctors don't routinely test for these illnesses. That's why doctors usually advise that you instead make sure your child is hydrating and that you are continuing to provide loving care. Remember, too, that most people do fine with RSV but do monitor whether your child is becoming more ill. If so, you may need to consult your doctor.

COVID-19, however, is different to RSV, the flu, or a cold, and it can appear in different forms. Some people start with vomiting or diarrhea. Other people start with respiratory symptoms. When in doubt, ask for a test. That way you can care for your child as your doctor recommends, while better protecting other family members from catching COVID-19.

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