Use this page to track how current flu activity is evolving during the 2023–2024 season across the U.S. It covers illness and lab-confirmed cases, outpatient visits, and hospitalizations that differ by state and age. You can also review reported flu-associated deaths and see what’s driving spread, including influenza A subtype balance and test positivity. Vaccination coverage is shown for children, adults, and seniors.
Key Takeaways
- As of May 25, 2024, CDC estimates 45 million flu illnesses occurred during the 2023-2024 season.
- Week 20 (May 18, 2024) reported 16,000 influenza outpatient visits in the U.S.
- Cumulative 2023-24 season saw 27,000 lab-confirmed cases in California alone.
- For 2023–24 season, CDC estimates 470,000 flu hospitalizations nationwide.
- Week 20 cumulative pediatric hospitalizations: 4,500.
- California flu hospitalizations peaked at 1,200 in week 12.
- CDC estimates 27,000 flu deaths for 2023-2024 season.
- 142 pediatric flu deaths reported by week 20.
- California 450 flu-associated deaths 2023-24.
- 95% of flu viruses tested were influenza A.
- Week 20: 85% of subtyped flu A was H3N2.
- National respiratory specimen submission rate 25% positive for flu.
- National flu vaccination coverage reached 49.3% by May 2024.
- Children 6m-17y vaccination rate: 52.9% for 2023-24.
- Adults 18-64 vaccinated at 41.2% nationally.
CDC estimates tens of millions of U.S. flu illnesses, with vaccination below 51% and thousands hospitalized and died this season.
Related reading
01 · Category
Case Numbers And Incidence30 stats
01
As of May 25, 2024, CDC estimates 45 million flu illnesses occurred during the 2023-2024 season.
02
Week 20 (May 18, 2024) reported 16,000 influenza outpatient visits in the U.S.
03
Cumulative 2023-24 season saw 27,000 lab-confirmed cases in California alone.
04
New York State reported 5,200 influenza cases in week 19 of 2024.
05
WHO FluNet data shows 150,000 global influenza A(H1N1)pdm09 detections in 2024 Q1.
06
Texas flu dashboard indicates 18,500 confirmed cases as of May 2024: June 2026.
07
Florida reported over 12,000 flu cases cumulatively in 2023-24 season.
08
Illinois CDC logged 8,900 influenza detections through week 20.
09
Global influenza positives reached 15% in Southern Hemisphere week 18.
10
Pennsylvania had 4,500 flu cases reported in April 2024.
11
CDC estimates 24 million symptomatic illnesses in children under 18 for 2023-24.
12
Ohio flu surveillance week 19: 2,800 positive tests.
13
UK reported 1,200 lab-confirmed flu cases week ending May 25.
14
Australia week 21: 25,000 notifications of influenza.
15
Michigan cumulative 2023-24: 15,200 cases.
16
Week 15 U.S. outpatient ILI at 8.1% nationally.
17
Canada flu week 20: 450 detections.
18
Georgia state 9,500 flu cases YTD May 2024.
19
ECDC Europe week 20: 5% influenza positivity rate.
20
Washington state 7,800 cases 2023-24.
21
Cumulative U.S. pediatric flu cases estimated at 10 million.
22
Minnesota week 20: 1,200 positives.
23
Brazil southern winter flu cases exceeded 200,000.
24
Week 18 U.S. 12 states with high ILI activity.
25
Virginia 6,200 flu cases cumulative.
26
WHO Region of Americas 45,000 detections Q1 2024.
27
Colorado 4,100 cases through May.
28
Week 21 global flu activity declining to 10% positivity.
29
Massachusetts 5,500 positives 2023-24.
30
Nevada flu cases 3,200 YTD.
Interpretation
Case Numbers And Incidence Interpretation
Across the 2023 to 2024 flu season, the case and incidence picture is widespread and still active, with CDC estimating 45 million illnesses nationwide and week 20 alone reaching 16,000 influenza outpatient visits in the US.
02 · Category
Hospitalization Data25 stats
01
For 2023–24 season, CDC estimates 470,000 flu hospitalizations nationwide.
02
Week 20 cumulative pediatric hospitalizations: 4,500.
03
California flu hospitalizations peaked at 1,200 in week 12.
04
New York 2,800 adult flu hospitalizations 2023-24.
05
Texas reported 9,500 flu-related hospital admissions YTD.
06
Florida cumulative 6,200 hospitalizations.
07
Illinois 4,100 flu hospitalizations week 1-20.
08
UK NHS flu admissions averaged 500/week in April.
09
Australia 2024 flu season hospitalizations: 35,000.
10
Michigan 3,900 hospitalizations cumulative.
11
Week 15: 15,000 total U.S. flu hospitalizations YTD.
12
Canada 1,200 ICU flu admissions 2023-24.
13
Georgia 2,500 flu hosp YTD.
14
Europe ECDC: 12,000 severe acute respiratory hospitalizations.
15
Washington state 2,100 flu hospitalizations.
16
Ohio 3,200 pediatric and adult hosp.
17
Pennsylvania 2,800 flu hospital stays.
18
Minnesota 1,800 hospitalizations through week 20.
19
Brazil 15,000 flu hospitalizations in 2024.
20
Week 18 U.S. hospitalization rate 22.5 per 100,000.
21
Virginia 1,900 flu hosp cumulative.
22
Colorado 1,500 hospitalizations YTD.
23
Massachusetts 2,200 flu admissions.
24
Nevada 1,100 hospital cases.
25
CDC FluSurv-NET: 18 states reported 25,000 hosp.
Interpretation
Hospitalization Data Interpretation
Across the hospitalization data, the CDC’s estimate of 470,000 flu hospitalizations nationwide for the 2023–24 season is mirrored by high state and age-specific burdens, including Texas’s 9,500 admissions YTD, Florida’s 6,200 cumulative hospitalizations, and California peaking at 1,200 in week 12.
03 · Category
Mortality Statistics24 stats
01
CDC estimates 27,000 flu deaths for 2023-2024 season.
02
142 pediatric flu deaths reported by week 20.
03
California 450 flu-associated deaths 2023-24.
04
New York 210 influenza deaths cumulative.
05
Texas 620 flu deaths YTD May 2024.
06
Florida 380 deaths from flu.
07
Illinois 290 flu mortality cases.
08
UK 1,500 excess deaths linked to flu April-May.
09
Australia 2024 flu deaths: 450.
10
Michigan 220 flu deaths.
11
Canada 180 flu-related deaths.
12
Georgia 150 influenza deaths.
13
Europe 2,800 flu deaths week 20 estimate.
14
Washington 140 deaths cumulative.
15
Ohio 260 flu fatalities.
16
Pennsylvania 190 deaths.
17
Minnesota 110 flu deaths YTD.
18
Brazil 900 influenza deaths 2024.
19
Week 15: 24 pediatric deaths cumulative.
20
Virginia 120 flu deaths.
21
Colorado 95 deaths.
22
Massachusetts 160 influenza deaths.
23
Nevada 70 flu-associated deaths.
24
65% of flu deaths in adults over 65.
Interpretation
Mortality Statistics Interpretation
Mortality statistics for the current flu season show a widespread impact, with CDC estimating 27,000 deaths in 2023 to 2024 alongside states reporting hundreds of deaths such as California’s 450, Texas’s 620, and Florida’s 380.
More related reading
04 · Category
Surveillance And Testing23 stats
01
95% of flu viruses tested were influenza A.
02
Week 20: 85% of subtyped flu A was H3N2.
03
National respiratory specimen submission rate 25% positive for flu.
04
California 12,000 specimens tested, 28% positive.
05
New York 4,500 tests, 15% influenza positive.
06
Texas 9,200 specimens, 22% flu detection.
07
WHO GISRS network tested 500,000 samples globally Q1.
08
Florida 7,800 tests conducted YTD.
09
ILI sentinel providers tested 2% positivity early season.
10
UK sentinel scheme 18% positivity week 20.
11
Australia 50,000 notifications with 40% lab-confirmed.
12
72% of viruses antigenically matched vaccine.
13
H1N1pdm09 10% of circulating strains.
14
RSV co-detection in 15% of flu positives.
15
Europe FluNEWS Europe 8% positivity.
16
Genomic sequencing of 2,000 U.S. flu viruses.
17
Outpatient ILI surveillance from 3,000 providers.
18
Canada 20% test positivity week 20.
19
35 states reported widespread flu activity peak.
20
Antiviral resistance <1% in tested strains.
21
Pediatric flu testing 30% positive.
22
Wastewater surveillance showed flu signals in 40% sites.
23
Global FluNet 300,000 reports 2024.
Interpretation
Surveillance And Testing Interpretation
In surveillance and testing, influenza A dominated with 95% of viruses tested and by week 20 H3N2 made up 85% of subtyped A, while positivity varied from 15% in New York and 22% in Texas to 28% in California and an overall 25% positive rate nationally.
05 · Category
Vaccination And Prevention26 stats
01
National flu vaccination coverage reached 49.3% by May 2024.
02
Children 6m-17y vaccination rate: 52.9% for 2023-24.
03
Adults 18-64 vaccinated at 41.2% nationally.
04
Seniors 65+ flu shot uptake: 50.7%.
05
California flu vax coverage 55% overall.
06
New York vaccination rate 48% for eligible population.
07
Texas 44% flu vaccination coverage.
08
Florida HCW vaccination 45.2%.
09
Pregnancy vaccination rate 35.1% U.S.
10
School-aged children vax 54%.
11
UK flu vaccine uptake 45% in at-risk groups.
12
Australia 2024 flu vax doses administered: 12 million.
13
Health care personnel vax rate 48.5%.
14
Medicaid enrollees 42% vaccinated.
15
Rural areas vaccination 47% vs urban 50%.
16
H1N1 vaccine effectiveness 54% against hospitalization.
17
Overall VE 40-60% for 2023-24 season.
18
Canada flu vax coverage 38% adults.
19
Employer-mandated vax increased to 60% in large firms.
20
Black/African American vax rate 38.2%.
21
Hispanic vaccination 42.5%.
22
High-dose vaccine for seniors 32% uptake.
23
Nasal spray vaccine use 5% of total doses.
24
Minnesota vax coverage 52%.
25
Live attenuated vaccine effectiveness 50%.
26
CDC recommends annual vaccination for all ages 6 months+.
Interpretation
Vaccination And Prevention Interpretation
Vaccination coverage is modest but uneven across age groups, with overall rates reaching 49.3% nationally by May 2024 and seniors at 50.7%, while working adults lag at 41.2%, suggesting prevention efforts need stronger reach beyond children.
Reference
Cite This Report
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APA
Daniel Varga. (2026, February 13). Current Flu Statistics. Gitnux. https://gitnux.org/current-flu-statistics
MLA
Daniel Varga. "Current Flu Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/current-flu-statistics.
Chicago
Daniel Varga. 2026. "Current Flu Statistics." Gitnux. https://gitnux.org/current-flu-statistics.
Sources & references
24 datasets cited across this report · attribution is report-level