Reported haemophilus influenzae disease surveillance for United States (USA) — — latest record 2026-10-25
As of 25 October 2026, the United States has reported 4,273 haemophilus influenzae disease cases in 2026, compiled from figures published by CDC NNDSS Weekly Notifiable Diseases (State-Level) and 1 other reporting authority. The full year 2025 closed at 5,738 cases.
Of the 12 countries reporting haemophilus influenzae disease to ENCLAI in 2026, United States accounts for 80.3% of reported cases and ranks 1 by case count.
ENCLAI has logged 5,238 surveillance records for haemophilus influenzae disease in United States in 2026, with the most detailed reporting in Aug 2026 (715 records). 443 of those arrived in the last 30 days; the case counts run to 2026-10-25. 2 distinct surveillance sources reported this pair in 2026.
Reporting authorities for these counts: CDC NNDSS Weekly Notifiable Diseases (State-Level) · South Dakota DOH — 62-condition surveillance report
One email a day: what changed in official disease reporting worldwide, with the source named for every number. Reported facts only — no forecasts and no interpretation.
| Year | Reported cases | Share of worldwide reports |
|---|---|---|
| 2023 | not reported | — |
| 2024 | incomplete year | — |
| 2025 | 5,738 | 82.1% |
| 2026 (year to date) | 4,273 | 80.3% |
Reporting bounds and case definitions vary; historical baselines are a separate comparison measure. Worldwide share compares this country's reported figure with the sum of all countries reporting haemophilus influenzae disease to ENCLAI for that year. "Incomplete year" means our sources cover less than ten months of that year, so no full-year figure is shown; "outbreak total to date" is a running total since an outbreak began, not a count for one year.
| Month | Records | Reporting sources |
|---|---|---|
| Jan 2026 | 322 | 1 |
| Feb 2026 | 312 | 1 |
| Mar 2026 | 530 | 1 |
| Apr 2026 | 468 | 1 |
| May 2026 | 631 | 1 |
| Jun 2026 | 533 | 1 |
| Jul 2026 | 556 | 1 |
| Aug 2026 | 715 | 1 |
| Sep 2026 | 582 | 2 |
| Oct 2026 | 589 | 1 |
A record is one dated surveillance publication or one row of an official table; a month with many records is a month with detailed reporting, not necessarily more cases. 443 records were logged in the last 30 days.
Areas within United States with the most haemophilus influenzae disease records this year:
| Area | Records |
|---|---|
| Ohio | 203 |
| New York | 200 |
| Tennessee | 198 |
| Pennsylvania | 174 |
| Kentucky | 171 |
| Country | 2026 cases | Trend |
|---|---|---|
| Spain | 488 | ▼ Declining · 2025 |
| Poland | 182 | ▼ Declining · 2025 |
| Brazil | 162 | ≈ Stable · 2025 |
| Germany | 95 | |
| Finland | 71 |
| Disease | 2026 cases | Trend |
|---|---|---|
| Chlamydia infection | 620,278 | |
| Gonococcal infection | 202,064 | |
| Hepatitis C | 62,543 | ▲ Rising · 2025 |
| Campylobacteriosis | 38,167 | ▲ Rising · 2025 |
| Non-typhoidal salmonellosis | 26,618 |
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One email a day: what changed in official disease reporting worldwide, with the source named for every number. Reported facts only — no forecasts and no interpretation.
