2025 Flu Symptoms. Symptoms usually come on suddenly, according to the cdc, and can include fevers above 100.4 degrees f, dry cough, sore throat, runny. Flu a tends to cause more ear infections than flu b, but type b is associated with more seizures, vomiting and diarrhea, said dr.

People who have flu often feel some or all of these signs and symptoms: From worries about food safety to egg prices, americans have questions about the bird flu.