Emergency?Trouble breathing, chest pain, confusion, a seizure, or a child who is hard to wake: call 911 or go to an emergency department now.All warning signs
FluHubWeek ending Sep 26, 2026

Local flu data

Flu near you

Enter your ZIP code to see the latest CDC flu signals for your county: emergency department visits, wastewater, and whether infections are growing, with what it means for you.

Your ZIP code stays in your browser. FluHub matches it to the county that covers most of its land area.

Antiviral supply

No national shortage of oseltamivir (Tamiflu) is listed by FDA as of Oct 2, 2026. Local pharmacies can still run out; call ahead.

Baloxavir (Xofluza), zanamivir (Relenza), and peramivir (Rapivab) are not listed either. Source: FDA drug shortage list.

Flu signals by state

The same CDC signals, statewide. Select a heading to sort, or a state for its full history.

StateED visits for fluED trendWastewater (flu A)Chance growingHospital admissionsOverall
United States0.44%RisingVery Low 744 sites–Very LowRising
Alabama0.63%RisingVery Low 18 sitesOver 99%Very LowRising
Alaska1.53%RisingModerate 1 site81%LowRising
Arizona0.40%RisingVery Low 2 sitesOver 99%Very LowRising
Arkansas0.35%RisingVery Low 1 siteOver 99%Very LowRising
California0.67%RisingLow 52 sitesOver 99%Very LowRising
Colorado0.28%RisingVery Low 23 sites99%Very LowRising
Connecticut0.18%RisingVery Low 9 sitesOver 99%Very LowRising
Delaware0.29%RisingVery Low 9 sites97%Very LowRising
District of Columbia0.08%Steady–Over 99%Very LowRising
Florida0.94%RisingVery Low 10 sitesOver 99%LowRising
Georgia0.27%RisingVery Low 16 sitesOver 99%Very LowRising
Hawaii3.25%RisingVery Low 4 sitesOver 99%LowRising
Idaho0.42%RisingVery Low 3 sites68%Very LowRising
Illinois0.23%RisingVery Low 70 sites88%Very LowRising
Indiana0.23%RisingVery Low 27 sitesOver 99%Very LowRising
Iowa––Very Low 11 sites–Very LowLow and steady
Kansas0.18%RisingVery Low 14 sitesOver 99%Very LowRising
Kentucky0.27%RisingLow 18 sitesOver 99%Very LowRising
Louisiana0.76%RisingVery Low 2 sitesOver 99%Very LowRising
Maine0.26%RisingVery Low 7 sites79%Very LowRising
Maryland0.23%RisingVery Low 2 sitesOver 99%Very LowRising
Massachusetts0.20%RisingVery Low 5 sitesOver 99%Very LowRising
Michigan0.15%RisingLow 9 sitesOver 99%Very LowRising
Minnesota0.26%RisingVery Low 24 sitesOver 99%Very LowRising
Mississippi0.43%RisingVery Low 2 sitesOver 99%Very LowRising
Missouri0.18%RisingVery Low 23 sitesOver 99%Very LowRising
Montana0.21%Rising–Over 99%LowRising
Nebraska0.09%SteadyVery Low 16 sitesOver 99%Very LowRising
Nevada0.48%RisingLow 1 siteOver 99%LowRising
New Hampshire0.20%RisingVery Low 1 siteOver 99%Very LowRising
New Jersey0.32%RisingVery Low 24 sites94%Very LowRising
New Mexico0.23%Rising–94%Very LowRising
New York0.23%RisingVery Low 54 sites94%Very LowRising
North Carolina0.80%RisingVery Low 32 sites91%Very LowRising
North Dakota0.20%Steady–Over 99%Very LowRising
Ohio0.14%RisingVery Low 57 sitesOver 99%Very LowRising
Oklahoma0.26%Rising–Over 99%Very LowRising
Oregon0.42%RisingVery Low 25 sites94%Very LowRising
Pennsylvania0.17%RisingVery Low 27 sitesOver 99%Very LowRising
Rhode Island0.21%RisingVery Low 12 sitesOver 99%Very LowRising
South Carolina0.24%RisingVery Low 22 sitesOver 99%Very LowRising
South Dakota0.20%RisingModerate 3 sitesOver 99%Very LowRising
Tennessee0.28%RisingVery Low 2 sitesOver 99%Very LowRising
Texas0.61%RisingVery Low 32 sitesOver 99%Very LowRising
Utah0.32%RisingVery Low 33 sitesOver 99%Very LowRising
Vermont0.18%SteadyVery Low 3 sitesOver 99%Very LowRising
Virginia0.32%RisingVery Low 6 sitesOver 99%Very LowRising
Washington1.09%RisingVery Low 26 sites97%LowRising
West Virginia0.18%RisingVery Low 1 siteOver 99%Very LowRising
Wisconsin0.25%RisingVery Low 3 sites21%Very LowRising
Wyoming0.78%RisingVery Low 2 sitesOver 99%Very LowRising
American Samoa–––––Not enough data
Guam––––LowNot enough data
Northern Mariana Islands–––––Not enough data
Puerto Rico––––LowNot enough data
U.S. Virgin Islands––––Very LowNot enough data
ED visits for flu: share of emergency department visits diagnosed as influenza, week ending Sep 26, 2026. Wastewater: typical (median) CDC wastewater viral activity level across reporting sites, week ending Sep 26, 2026. Chance growing: CDC's estimated probability that flu infections are increasing. Hospital admissions: CDC's admission level for confirmed flu, week ending Sep 26, 2026.

Next 3 weeks: hospital admissions forecast

Forecasts resume when CDC's 2026–27 FluSight challenge posts its first ensemble.

Forecast: CDC FluSight ensemble, which combines forecasts from CDC FluSight and its contributing modeling teams (FluSight forecast hub).

How to read these signals

  • Emergency department visits show what share of ER visits were diagnosed as flu. The trend (rising, steady, or falling) is calculated by CDC for the wider health service area around your county. Many counties have no emergency departments that report, and some states publish only a statewide figure; in those cases FluHub shows the state level instead.
  • Wastewater picks up flu A virus shed by people in a sewer area, often before people seek care. Levels run from very low to very high compared with each site's own history. Wastewater can also pick up virus from animal sources, and it does not separate seasonal flu types.
  • Chance flu is growing is CDC's estimate, from emergency department data, of the probability that infections are increasing. It says nothing about how high flu will go.
  • All of these describe your community, not your personal risk. If you have trouble breathing, chest pain, or confusion, get emergency care now.

Data as of: ED visits Sep 26, 2026; wastewater Sep 26, 2026; growth estimates Sep 29, 2026; hospital admissions Sep 26, 2026.

Sources: CDC NSSP emergency department visits; CDC wastewater viral activity levels (public domain; includes sites run by WastewaterSCAN and states) linked to counties with CDC wastewater site data; CDC epidemic trends and Rt and state estimates; CDC NHSN hospital admission levels; ZIP to county matching from the U.S. Census Bureau 2020 relationship files.