Compiled by the ENCLAI research team following a documented methodology · Editorial oversight: Dr Natalya Mathur, Founder · Data last updated: (UTC)

Enterohaemorrhagic E. coli (EHEC) infection in Guam: 2026 cases and outbreak reports

Reported enterohaemorrhagic e. coli (ehec) infection surveillance for Guam (GUM) — — latest record 2026-10-25

What the 2026 data shows

As of 25 October 2026, Guam has reported 2 Enterohaemorrhagic E. coli (EHEC) infection cases in 2026, compiled from figures published by CDC NNDSS Weekly Notifiable Diseases (State-Level). The full year 2025 closed at 4 cases.

Of the 17 countries reporting enterohaemorrhagic e. coli (ehec) infection to ENCLAI in 2026, Guam accounts for 0.0% of reported cases and ranks 16 by case count.

ENCLAI has logged 14 surveillance records for enterohaemorrhagic e. coli (ehec) infection in Guam in 2026, with the most detailed reporting in Aug 2026 (4 records). 3 of those arrived in the last 30 days; the case counts run to 2026-10-25. 1 distinct surveillance sources reported this pair in 2026.

Reporting authorities for these counts: CDC NNDSS Weekly Notifiable Diseases (State-Level)

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Surveillance summary

2026 cases (YTD)
2
2025 cases (full year)
4
Baseline avg (3yr)
N/A
Trend (2025)
—
No comparable earlier years

Reported cases by year, Guam

YearReported casesShare of worldwide reports
2023 not reported —
2024 not reported —
2025 4 0.0%
2026 (year to date) 2 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 enterohaemorrhagic e. coli (ehec) infection 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.

Surveillance records logged in 2026

MonthRecordsReporting sources
Jan 202621
Aug 202641
Sep 202641
Oct 202641

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.

Sub-national reporting, 2026

Areas within Guam with the most enterohaemorrhagic e. coli (ehec) infection records this year:

AreaRecords
Guam14

Enterohaemorrhagic E. coli (EHEC) infection in other countries, 2026

Country2026 casesTrend
United States 9,157
Germany 1,972 ▼ Declining · 2025
Switzerland 1,459 ≈ Stable · 2025
Australia 953
Spain 642 ≈ Stable · 2025

Other diseases reported in Guam, 2026

Disease2026 casesTrend
Seasonal influenza 625 ▲ Rising · 2025
Chlamydia infection 610 ≈ Stable · 2025
COVID-19 354 ▼ Declining · 2025
Gonococcal infection 246 ▲ Rising · 2025
Syphilis 103 ▲ Rising · 2025

Questions about this page

How many Enterohaemorrhagic E. coli (EHEC) infection cases has Guam reported in 2026?
As of 25 October 2026, Guam has reported 2 Enterohaemorrhagic E. coli (EHEC) infection cases in 2026, compiled from figures published by CDC NNDSS Weekly Notifiable Diseases (State-Level). The full year 2025 closed at 4 cases.
Where does Guam publish Enterohaemorrhagic E. coli (EHEC) infection surveillance data?
The counts on this page were published by CDC NNDSS Weekly Notifiable Diseases (State-Level). ENCLAI compiles and normalises them and is not affiliated with these authorities.

About this data

Figures are reported case counts as published by the originating health authorities, compiled by ENCLAI from 444 verified surveillance sources. Guam figures reflect the reporting available to ENCLAI; reporting periods and case definitions differ between sources, and a missing report does not establish zero cases. ENCLAI holds enterohaemorrhagic e. coli (ehec) infection records for Guam dated from 2025. How we verify and update data: methodology & Trust Center · understanding case counts.

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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.

Double opt-in — we send a confirmation link and nothing else until you click it. One-click unsubscribe on every email. See our privacy notice.