What's Going Around
Right Now?

As of summer 2026, norovirus and gastroenteritis are the most widely reported illnesses, with active reports in at least 12 states. Norovirus is seeing an unusual summer surge, particularly in Utah, Texas, Ohio, and North Carolina. Hantavirus is being monitored following elevated signals in multiple states. Parainfluenza virus is nationally elevated. Use Virus Watcher to see what is active in your specific state.

In summer 2026, norovirus is the primary stomach bug circulating across the United States. Symptoms include sudden nausea, vomiting, diarrhea, and stomach cramps appearing 12 to 48 hours after exposure and lasting 24 to 72 hours. Utah, Texas, Ohio, North Carolina, and Pennsylvania are showing the highest activity.

Virus Watcher tracks real-time outbreak reports for all 50 US states. Select your state from the outbreak tracker to see current disease activity, case counts, and alerts. The platform monitors 200+ diseases across government health agencies, wastewater surveillance, and community reports.

Parainfluenza virus (PIV) is nationally elevated as of summer 2026 and declining. Human metapneumovirus (HMPV) has been circulating. COVID-19 continues at low endemic levels. Influenza activity is typically low in summer but watch for early-season RSV and influenza activity beginning in September as back-to-school season approaches.

During summer 2026, school-age children are primarily affected by norovirus and gastroenteritis. As back-to-school season begins in August and September 2026, rhinovirus, influenza, and RSV are expected to surge. Virus Watcher tracks school-age illness trends alongside general community surveillance.

Check the Virus Watcher state-specific pages for current norovirus and gastroenteritis reports. Select your state from the list above to see active case reports, wastewater signals, and outbreak alerts updated daily.