United States
The U.S. layer is a state-level historical context layer, not live local surveillance and not county-precision mapping. CDC publishes public hantavirus case geography by state and explicitly limits county-level public data.
CDC reported 864 laboratory-confirmed U.S. hantavirus disease cases from 1993 through 2022.
CDC states that county-level case data cannot be provided publicly.
State health departments remain the best source for current local reporting and prevention notices.
Reported cases are historical surveillance summaries. They show where cases have been reported by state, not where risk exists at an address.
Reservoir regions show ecology. Deer mouse distribution and other rodent host ranges are useful context, but they do not show infected animals or human cases.
Hantavirus is rare, and public health agencies protect patient privacy. This MVP does not infer county risk from news reports, rodent ranges, or partial state summaries.
For current concerns in a specific area, contact the relevant state or local health department.
Source transparency
Links open official public health or agency-published source material used for the summaries on this page.
Centers for Disease Control and Prevention
U.S. historical case context and the state-only geography limitation.
CDC states public case data are reported by state only and county-level data cannot be provided publicly.
Centers for Disease Control and Prevention
Explains national notifiable condition reporting and surveillance definitions.
Surveillance case definitions are for public health classification and are not clinical diagnostic guidance for individual patients.
Centers for Disease Control and Prevention
General description of hantavirus diseases, transmission, reservoirs, symptoms, and risk reduction.
Broad public overview; local health departments remain the source for local reporting requirements and investigations.