Reported leptospirosis surveillance for Guam (GUM) — ▼ Declining · 2025 — latest record 2026-10-25
As of 25 October 2026, Guam has reported 3 leptospirosis cases in 2026, as published by Guam DPHSS (1 other reporting authority also reports it). The full year 2025 closed at 3 cases. 2025 closed 54% below the 2023–2024 average, which is why the trend reads “Declining”.
Of the 27 countries reporting leptospirosis to ENCLAI in 2026, Guam accounts for 0.0% of reported cases and ranks 24 by case count.
ENCLAI has logged 41 surveillance records for leptospirosis in Guam in 2026, with the most detailed reporting in Oct 2026 (32 records). 3 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: Guam DPHSS — Communicable Disease Surveillance dashboard (Office of Epidemiology and Research) · 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 | 10 | 0.1% |
| 2024 | 3 | 0.0% |
| 2025 | 3 | 0.1% |
| 2026 (year to date) | 3 | 0.0% |
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 leptospirosis 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 | 1 | 1 |
| Aug 2026 | 4 | 1 |
| Sep 2026 | 4 | 1 |
| Oct 2026 | 32 | 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. 3 records were logged in the last 30 days.
Areas within Guam with the most leptospirosis records this year:
| Area | Records |
|---|---|
| Guam | 13 |
| Country | 2026 cases | Trend |
|---|---|---|
| Sri Lanka | 5,499 | |
| Colombia | 4,215 | |
| Brazil | 2,531 | ▼ Declining · 2025 |
| Philippines | 868 | |
| Dominican Republic | 297 |
| Disease | 2026 cases | Trend |
|---|---|---|
| Seasonal influenza | 625 | ▲ Rising · 2025 |
| Chlamydia infection | 610 | ≈ Stable · 2025 |
| COVID-19 | 354 | ▼ Declining · 2025 |
| Gonococcal infection | 246 | ▲ Rising · 2025 |
| Syphilis | 103 | ▲ Rising · 2025 |
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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.
