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

Cryptosporidiosis in United States: 2026 cases and outbreak reports

Reported cryptosporidiosis surveillance for United States (USA) — ▲ Rising · 2025 — latest record 2026-10-25

What the 2026 data shows

As of 25 October 2026, the United States has reported 7,235 cryptosporidiosis cases in 2026, compiled from figures published by CDC NNDSS Weekly Notifiable Diseases (State-Level). The full year 2025 closed at 8,937 cases. The three-year baseline for United States is 4,135 cases a year. 2025 closed 116% above 3yr avg (WHO historical series), which is why the trend reads “Rising”.

Of the 13 countries reporting cryptosporidiosis to ENCLAI in 2026, United States accounts for 62.5% of reported cases and ranks 1 by case count.

ENCLAI has logged 2,018 surveillance records for cryptosporidiosis in United States in 2026, with the most detailed reporting in Aug 2026 (240 records). 147 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)
7,235
2025 cases (full year)
8,937
Baseline avg (3yr)
4,135
Trend (2025)
▲ Rising · 2025
+116% vs 3yr avg

Reported cases by year, United States

YearReported casesShare of worldwide reports
2023 not reported —
2024 incomplete year —
2025 8,937 54.2%
2026 (year to date) 7,235 62.5%

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 cryptosporidiosis 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 20261851
Feb 20261781
Mar 20262281
Apr 20261841
May 20262341
Jun 20261881
Jul 20261911
Aug 20262401
Sep 20261941
Oct 20261961

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. 147 records were logged in the last 30 days.

Sub-national reporting, 2026

Areas within United States with the most cryptosporidiosis records this year:

AreaRecords
Alabama44
Arizona44
California44
Colorado44
Florida44

Cryptosporidiosis briefings for United States

All briefings →

Cryptosporidiosis in other countries, 2026

Country2026 casesTrend
Australia 2,375
Spain 621 ▼ Declining · 2025
Finland 424 ≈ Stable · 2025
Germany 389
New Zealand 198 ≈ Stable · 2025

Other diseases reported in United States, 2026

Disease2026 casesTrend
Chlamydia infection 620,278
Gonococcal infection 202,064
Hepatitis C 62,543 ▲ Rising · 2025
Campylobacteriosis 38,167 ▲ Rising · 2025
Non-typhoidal salmonellosis 26,618

Questions about this page

How many cryptosporidiosis cases has United States reported in 2026?
As of 25 October 2026, the United States has reported 7,235 cryptosporidiosis cases in 2026, compiled from figures published by CDC NNDSS Weekly Notifiable Diseases (State-Level). The full year 2025 closed at 8,937 cases. The three-year baseline for United States is 4,135 cases a year. 2025 closed 116% above 3yr avg (WHO historical series), which is why the trend reads “Rising”.
Is cryptosporidiosis rising or falling in United States?
ENCLAI's trend reading for cryptosporidiosis in United States is “Rising · 2025”: the latest complete year is compared with the earlier baseline from the reported counts; the current year is not judged until it closes.
Where does United States publish cryptosporidiosis 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. United States 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 cryptosporidiosis records for United States dated from 2024. How we verify and update data: methodology & Trust Center · understanding case counts.

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The daily disease brief

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.