First Signs Of Flu 2025. Or swollen lips, tongue, or. The flu scenario modeling hub, which models different scenarios that may occur during the flu season to help with projecting flu season outcomes, recently provided its first round of.

The first signs of getting the flu may include fever (not everyone with the flu has a fever), chills, muscle or body aches, sore throat, cough, headache, and vomiting and diarrhea (more. Don’t shake people’s hands or.