For real-time data, see CDC, WHO, and PAHO situation dashboards. This page is updated manually and reflects information as of May 2026.
Loading interactive map…
Argentine Patagonia (Río Negro, Chubut, Neuquén, Santa Cruz)
MV Hondius cluster; ongoing contact tracing.
Southern Chile (Aysén, Los Lagos, Magallanes)
Sporadic Andes virus cases; expedition cruise routes.
U.S. Four Corners (AZ, NM, CO, UT)
Sin Nombre virus; baseline surveillance.
Pacific Northwest (US/Canada)
Sin Nombre virus; rural exposure.
Northeast Asia (Korea, China)
Hantaan and Seoul viruses; HFRS.
Northern Europe (Scandinavia, Russia)
Puumala virus; usually mild HFRS.
Balkans (Serbia, Croatia, Bosnia)
Dobrava virus; severe HFRS.