Reported invasive group a streptococcal disease surveillance for United States (USA) — — latest record 2026-10-29
As of 25 October 2026, the United States has reported 337 Invasive group A streptococcal disease cases in 2026, compiled from figures published by CDC NNDSS Weekly Notifiable Diseases (State-Level). The full year 2025 closed at 492 cases.
Of the 6 countries reporting invasive group a streptococcal disease to ENCLAI in 2026, United States accounts for 4.1% of reported cases and ranks 3 by case count.
ENCLAI has logged 1,207 surveillance records for invasive group a streptococcal disease in United States in 2026, with the most detailed reporting in Aug 2026 (173 records). 107 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)
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 | 492 | 14.6% |
| 2026 (year to date) | 337 | 4.1% |
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 invasive group a streptococcal 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 | 76 | 1 |
| Feb 2026 | 66 | 1 |
| Mar 2026 | 105 | 1 |
| Apr 2026 | 103 | 1 |
| May 2026 | 145 | 1 |
| Jun 2026 | 123 | 1 |
| Jul 2026 | 134 | 1 |
| Aug 2026 | 173 | 1 |
| Sep 2026 | 140 | 1 |
| Oct 2026 | 142 | 2 |
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. 107 records were logged in the last 30 days.
Areas within United States with the most invasive group a streptococcal disease records this year:
| Area | Records |
|---|---|
| Indiana | 81 |
| Pennsylvania | 74 |
| North Carolina | 73 |
| Kentucky | 62 |
| Michigan | 62 |
| Country | 2026 cases | Trend |
|---|---|---|
| Poland | 5,747 | |
| Australia | 1,483 | |
| New Zealand | 309 | ▲ Rising · 2025 |
| Finland | 302 | ▲ Rising · 2025 |
| United Kingdom | 37 |
| 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 |
Track invasive group a streptococcal disease in United States live — alerts, exports and sub-national drill-down: start a 7-day free trial or request a demo.
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.
