HMHantavirus Maps

Where hantavirus is reported

California hantavirus map and source context

This page gives reviewed map context for California. It is a source-linked public health summary, not a live case counter or local risk predictor.

Open trackerReview methodology

Answer-ready summary

What this California map page says

This California page is a reviewed, source-linked hantavirus map summary. It can be cited for public health context, source limitations, and geography precision, but it is not a live outbreak feed, patient-location dataset, or local risk score.

Suggested citation: Hantavirus Maps, “California hantavirus map and source context,” updated May 19, 2026, https://hantavirusmaps.org/where/california.

Official state health source linked

CDPH surveillance products linked

CDPH provides a hantavirus infection page with prevention guidance, an interactive story map, and a county-of-exposure PDF for reported California resident infections through 2024. This MVP links to those official products rather than extracting county values.

Period
1980-2024
Reported cases
Linked source
Geography
State page with linked county-of-exposure PDF

How to interpret this page

What the California marker means

It is a reviewed public summary or official source link for map context.

It is not a statement that current exposure risk exists at any exact address, county, park, workplace, or travel stop.

For current public health action, use the linked official agency sources and local health authorities.

Limits

Known limitations

  • No California county values are copied into this MVP.
  • County of exposure is not the same thing as exact location of infection risk.

Official alerts

Related reviewed alerts

California Department of Public Health · 2026-05-08

California monitoring passengers linked to MV Hondius Andes virus exposure

CDPH said it was coordinating with federal and local health partners after notification that California residents were aboard the MV Hondius. CDPH described daily symptom monitoring for a returned passenger and noted that at least one other California resident remained aboard the ship, while public risk in California was extremely low.

Passenger-response update only. It does not indicate California community transmission, patient locations, or a general local risk increase.

Source transparency

Reviewed Sources

Links open official public health or agency-published source material used for the summaries on this page.

California Department of Public Health

Hantavirus Infection

California prevention guidance, deer mouse context, and links to CDPH map and surveillance PDFs.

This MVP links to CDPH surveillance products instead of extracting county-level values.