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FluHubWeek ending Sep 26, 2026

Week ending Sep 26, 2026

Flu in District of Columbia

Outpatient flu-like illness in District of Columbia was 2.2% of visits in the week ending Sep 26, 2026, compared with 2.5% at the same point last season.

CDC activity levelVery Lowweek ending Sep 26, 2026
Outpatient visits for flu-like illness2.2%↓ 0.5 ptssame week last season 2.5%
New flu hospital admissions30.44 per 100,000 (U.S. 0.76)
Vaccinated last season, 2024–2560%adults 58%, children 69%; U.S. 44%

The 2026–27 flu season starts with MMWR week 40, the week ending October 10, 2026.

Until those numbers arrive, the charts below show the full 2025–26 season against earlier seasons. Off-season activity is normally low; a rise in late September or October is the first sign the new season is under way.

District of Columbia: share of outpatient visits for flu-like illnessUnweighted %ILI from ILINet providers in the state, by flu season.
  • 2025–26 season
  • 2024–25 season
  • Typical range, 2010–11 to 2024–25 (10th–90th percentile)
  • Typical median
District of Columbia: share of outpatient visits for flu-like illness. Unweighted %ILI from ILINet providers in the state, by flu season.0%5%10%15%OctNovDecJanFebMarAprMayJunJulAugSep2024–252025–26

Typical range is the 10th–90th percentile of District of Columbia's own seasons from 2010–11, excluding the COVID-disrupted 2020–21 and 2021–22 seasons. Provider mix changes over time, so compare shapes and timing more than exact levels.

District of Columbia: share of lab tests positive for influenzaClinical laboratories reporting to WHO/NREVSS.
  • 2020–21 season
  • 2019–20 season
  • Typical range, 2019–20 to 2019–20 (10th–90th percentile)
  • Typical median
District of Columbia: share of lab tests positive for influenza. Clinical laboratories reporting to WHO/NREVSS.0%0.00005%0.0001%OctNovDecJanFebMarAprMayJunJulAugSep2019–202020–21
District of Columbia: weekly hospital admissions with confirmed flu, per 100,000Every week since Oct 24, 2020, against the national rate.
  • District of Columbia
  • United States
District of Columbia: weekly hospital admissions with confirmed flu, per 100,000010203040202120222023202420252026U.S.DC

Hospital reporting became mandatory in November 2024; gaps or flat stretches before that can reflect reporting rather than flu.

District of Columbia: share of residents vaccinated against flu, by seasonAdults 18+ and children 6 months to 17 years, end-of-season estimates.
  • Adults
  • Children
  • U.S. adults
District of Columbia: share of residents vaccinated against flu, by season0%20%40%60%80%09–1012–1315–1618–1921–2224–25ChildrenAdultsU.S. adults

CDC FluVaxView. Adult estimates come from BRFSS and child estimates from NIS-Flu; both are survey-based with confidence intervals of several points.

Season peaks

SeasonPeak %ILIPeak week
2017–185.3%Feb 17
2018–194.6%Jun 22
2019–205.7%Dec 28
2022–2312.7%Nov 5
2023–248.9%Feb 24
2024–2511.1%Feb 8
2025–269.2%Dec 20

Activity level archive

Week endingLevel
Sep 26, 2026Very Low

FluHub started archiving CDC's weekly levels on Sep 26, 2026; CDC keeps only the current week.

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