What Are The Symptoms Of 2024 Flu. Flu symptoms usually appear two to three days after contact with the virus, according to the university of pennsylvania health system, but you may start to feel sick. Flu symptoms usually start with a runny nose, sneezing and sore throat, like a cold.
Flu will often get better on its own, but it can make some people seriously ill. Everything you need to know about the flu illness, including symptoms, treatment and prevention.
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