Cdc Stomach Flu 2025. Unlike cdc’s traditional influenza (flu) surveillance systems, which measure flu activity after it has occurred, flu forecasting provides information about the future,. A weekly influenza surveillance report prepared by the influenza division.

Vomiting, diarrhea, nausea, and stomach cramps are the common symptoms someone sickened by norovirus will have, according to the state public health department. This project collects forecasts for weekly new hospitalizations due to confirmed influenza.