Health ❯ Epidemiology ❯ Disease Outbreaks

Seasonal Illnesses

Flu Season Monsoon Effects Norovirus Trends Influenza Variants Norovirus Activity Influenza Trends RSV Cyclospora Outbreaks Regional Health Trends Grippe Vaccination Recommendations Impact on Public Health Flu Cases Grippe-Welle 2025/2026 Grippe in Europa Norovirus Cases Viral Infections Adenovirus Flu Trends Influenza Season Norovirus in San Diego Adenovirus Infections COVID-19 Grippe (Flu) RSV Infections Rainy Season Diseases Hand, Foot, and Mouth Disease H1N1 Cases Monsoon Season Influenza Cases

Norovirus Surge Triggers Chicago-Area Remote Schooling as Hospitals and Data Show Spikes

Guidance focuses on 48-hour post-symptom isolation with soap-and-water hygiene plus bleach disinfection.

Norovirus Activity Rises Early in the U.S., With Test Positivity Doubling to About 14%