Flu Symptoms 2024 Adults. Flu symptoms usually start with a runny nose, sneezing and sore throat, like a cold. If you have insurance, your flu vaccine will be at no cost to you.

A bad bout of flu can be much worse than a heavy cold. Here’s what to know about flu and covid symptoms, as well as some clues to look for regarding whether you’re sick with a virus rather than allergies (or vice versa).