North America 10 Nov 2026 · Dr Natalya Mathur
ENCLAI ID ENCLAI-2026-0000803-7 · Cite

Enterohaemorrhagic E. coli (EHEC) infection in the US: 3,569 cases in 90 days

ENCLAI SURVEILLANCE BRIEFING · 10 NOVEMBER 2026Enterohaemorrhagic E. coli (EHEC)infection in the US: 3,569 cases in 90daysEnterohaemorrhagic E. coli (EHEC) infection · The US · reported cases911reported cases in the 30 days to 10 November▼ 40% fewer than the 30 days before (1,519)1,519The 30 daysbefore978Same 30 days, ayear earlier3,56990 days to 10November9,1572026 so farThree 30-day windows978A year earlier1,51930 days before911Last 30 daysLargest counts, last 90 daysThe US3,569Germany966Hungary239Australia226Switzerland178South Korea13410 countries with a reported count in this windowWhat this briefing shows1Reported cases fell from 1,519 to 911 between the two latest 30-daywindows, 40% fewer.2The latest count of 911 is below the 978 reported in the same 30days a year earlier.3The US accounts for 55.8% of the enterohaemorrhagic e. coli (ehec)infection cases reported to ENCLAI worldwide in 2026 and ranks 1 of17 reporting countries.Read with care: reports to official surveillance, not people and not a rate. A change between30-day windows can come from reporting timing as much as from transmission.Source: official surveillance reports compiled by ENCLAI · data as of 2026-11-10 ·enclai.net/newsVerify every figure against the source data before use; ENCLAI does not guarantee accuracy orcompleteness.
  1. Reported cases fell from 1,519 to 911 between the two latest 30-day windows, 40% fewer.
  2. The latest count of 911 is below the 978 reported in the same 30 days a year earlier.
  3. The US accounts for 55.8% of the enterohaemorrhagic e. coli (ehec) infection cases reported to ENCLAI worldwide in 2026 and ranks 1 of 17 reporting countries.
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Largest included reported counts (6 of 10 countries) · 2026-08-13 through 2026-11-10 · source-record dates; coverage varies
United States3,569
Germany966
Hungary239
Australia226
Switzerland178
South Korea134
Enterohaemorrhagic E. coli (EHEC) infection — United States · reported surveillance count · 2026-08-13 through 2026-11-10 · inclusive source-record dates
Enterohaemorrhagic E. coli (EHEC) infection — United States · reported surveillance count · 2026-10-12 through 2026-11-10 · inclusive source-record dates
Enterohaemorrhagic E. coli (EHEC) infection — United States · reported surveillance count · 2026-09-12 through 2026-10-11 · inclusive source-record dates
Enterohaemorrhagic E. coli (EHEC) infection — United States · reported surveillance count · 2025-10-12 through 2025-11-10 · inclusive source-record dates
Enterohaemorrhagic E. coli (EHEC) infection · combined reported surveillance count · 2026-08-13 through 2026-11-10 · inclusive source-record dates
Enterohaemorrhagic E. coli (EHEC) infection · weekly reported-count series · Weeks starting 2026-08-03 through 2026-10-19
Largest included reported counts (6 of 10 countries) · 2026-08-13 through 2026-11-10 · source-record dates; coverage varies

The full briefing

Full 2026 picture: Enterohaemorrhagic E. coli (EHEC) infection in United States — reported cases by year, monthly records and every briefing for this pair.

The US reported 3,569 enterohaemorrhagic e. coli (ehec) infection cases in the 90 days to 10 November. 911 of them came in the 30 days to 10 November, against 1,519 in the 30 days before. The same 30 days a year earlier had 978.

Why it matters

The US accounts for 55.8% of the enterohaemorrhagic e. coli (ehec) infection cases reported to ENCLAI worldwide so far in 2026. It ranks 1 of 17 reporting countries.

The numbers

PeriodReported cases
Last 30 days (to 10 November)911
The 30 days before that1,519
Same 30 days a year earlier978
90 days to 10 November3,569
2026 so far (ENCLAI export)9,157
The card shows enterohaemorrhagic e. coli (ehec) infection in the US. It compares the last 30 days with the 30 days before, as reported to ENCLAI.
The card shows enterohaemorrhagic e. coli (ehec) infection in the US. It compares the last 30 days with the 30 days before, as reported to ENCLAI.

What the source says

These figures come from official surveillance reports. They count reports, not people. They are not an incidence rate, the rate of new cases in a population. They do not cover the whole population. The reporting periods do not match these dates exactly. Some reports are incomplete or still in progress. Some run past the window. Some reports do not say which date they use: symptom onset, notification, or confirmation.

Caveats

  • A change between two 30-day windows can come from reporting timing as much as from transmission. The source does not say which.

Where to learn more

Enterohaemorrhagic E. coli (EHEC) infection in the US: the 2026 picture · Enterohaemorrhagic E. coli (EHEC) infection worldwide · the US: all diseases · How to read these counts

Retained reporting context

Included reporting countries

Enterohaemorrhagic E. coli (EHEC) infection

5,447

combined reported surveillance count

2026-08-13 through 2026-11-10 · inclusive source-record dates

For Enterohaemorrhagic E. coli (EHEC) infection, the combined reported surveillance count across the 10 countries with positive reported counts in this selection is 5,447. The selection uses source-record dates 2026-08-13 through 2026-11-10, inclusive. This covers only these reporting countries; source periods and completeness vary.

Exact included country membership
CountryReported countSource-record dates
Australia2262026-08-13 through 2026-11-10
Switzerland1782026-08-13 through 2026-11-10
Germany9662026-08-13 through 2026-11-10
Spain862026-08-13 through 2026-11-10
Finland422026-08-13 through 2026-11-10
Guam12026-08-13 through 2026-11-10
Hungary2392026-08-13 through 2026-11-10
South Korea1342026-08-13 through 2026-11-10
Latvia62026-08-13 through 2026-11-10
United States3,5692026-08-13 through 2026-11-10

Snapshot 2026-11-10

Weekly reporting history

Enterohaemorrhagic E. coli (EHEC) infection

weekly reported-count series

Weeks starting 2026-08-03 through 2026-10-19

A retained retrospective weekly reported-count series across included reporting countries. Country membership and reporting completeness can vary by week. Missing weeks remain gaps. This is a separate report-series measure; it does not establish exact incidence or laboratory confirmation. Exact country membership could not be reconciled to the current primary snapshot.

Retained weekly report series
WeekReported count
2026-08-03 through 2026-08-09703
2026-08-10 through 2026-08-16789
2026-08-17 through 2026-08-23565
2026-08-24 through 2026-08-30642
2026-08-31 through 2026-09-06581
2026-09-07 through 2026-09-13556
2026-09-14 through 2026-09-20395
2026-09-21 through 2026-09-27419
2026-09-28 through 2026-10-04459
2026-10-05 through 2026-10-11449
2026-10-12 through 2026-10-18399
2026-10-19 through 2026-10-25384

Snapshot 2026-11-09

Sources and limitations

  • Window. Each quantity keeps its recorded source-selection dates and coverage notes. Dated batches and weekly or genomic observations retain their separate measures. Publication or capture dates do not establish case onset, equal cohorts or period completeness.
  • Denominator. The retained counts do not establish complete populations, equal reporting cohorts or incidence rates. Source period bounds and definitions can differ.
  • Case definition. Case definitions are set nationally and change over time. Counts for the same disease in different countries may not be counting the same thing.
  • Revisions. Agencies restate figures. Values here are as reported at the time of publication; see the update history below.

ENCLAI counts reflect verified records available from reporting sources for the stated window. They are not estimates of total incidence and should not be interpreted as medical advice. Full methodology: the dataset.

Review and corrections

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