How Long Does Flu Last 2024. Flu will often get better on its own, but it can make some people seriously ill. Cdc recommends that everyone 6 months and older get an annual flu vaccine as long as influenza viruses are spreading.
Using the highest weekly values observed from october 1, 2023, through may 18, 2024, cdc assesses this season’s severity as: The healthcare data we have for.