Reported invasive group a streptococcal disease surveillance for New Zealand (NZL) — ▲ Rising · 2025 — latest record 2026-10-13
As of 31 July 2026, New Zealand has reported 309 Invasive group A streptococcal disease cases in 2026, compiled from figures published by PHF Science / ESR. The full year 2025 closed at 645 cases. 2025 closed 345% above 2024, which is why the trend reads “Rising”.
Of the 6 countries reporting invasive group a streptococcal disease to ENCLAI in 2026, New Zealand accounts for 3.8% of reported cases and ranks 4 by case count.
ENCLAI has logged 88 surveillance records for invasive group a streptococcal disease in New Zealand in 2026, with the most detailed reporting in Jun 2026 (28 records). 28 of those arrived in the last 30 days; the case counts run to 2026-07-31. 2 distinct surveillance sources reported this pair in 2026.
Reporting authorities for these counts: PHF Science / ESR — NZ Monthly Notifiable Disease Surveillance (by district)
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| Year | Reported cases | Share of worldwide reports |
|---|---|---|
| 2023 | not reported | — |
| 2024 | 145 | 3.0% |
| 2025 | 645 | 19.1% |
| 2026 (year to date) | 309 | 3.8% |
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 |
|---|---|---|
| Jun 2026 | 28 | 1 |
| Jul 2026 | 11 | 1 |
| Aug 2026 | 21 | 1 |
| Oct 2026 | 28 | 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. 28 records were logged in the last 30 days.
Areas within New Zealand with the most invasive group a streptococcal disease records this year:
| Area | Records |
|---|---|
| Auckland | 8 |
| Bay of Plenty | 8 |
| Canterbury | 8 |
| Waikato Region | 8 |
| Wellington Region | 8 |
ENCLAI verified 156 cases of invasive group A streptococcal disease in New Zealand over the last 90 days, with 60 recorded in the most recent 30-day period.
| Country | 2026 cases | Trend |
|---|---|---|
| Poland | 5,747 | |
| Australia | 1,483 | |
| United States | 337 | |
| Finland | 302 | ▲ Rising · 2025 |
| United Kingdom | 37 |
| Disease | 2026 cases | Trend |
|---|---|---|
| COVID-19 | 6,909 | ▼ Declining · 2025 |
| Campylobacteriosis | 2,271 | ≈ Stable · 2025 |
| Whooping cough (pertussis) | 909 | ▲ Rising · 2025 |
| Non-typhoidal salmonellosis | 493 | ▲ Rising · 2025 |
| Enterohaemorrhagic E. coli (EHEC) infection | 469 | ≈ Stable · 2025 |
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