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  • Hantavirus Pulmonary Syndrome Response Continues at Yosemite National Park

    The recent diagnosis of hantavirus pulmonary syndrome (HPS) in several park visitors has prompted Yosemite National Park to scale up public health response and outreach. More »

Hantavirus in Yosemite

Information current as of September 24, 2012 at 9 am PDT.

The National Park Service continues its public health response and outreach as a result of confirmed cases of hantavirus infection in individuals who have spent one or more nights in Yosemite National Park since June of this year. The National Park Service Office of Public Health is working with the Centers for Disease Control and Prevention (CDC) and state public health offices to heighten public health awareness and detection of the disease.

The National Park Service has received confirmations from national and state public health agencies of hantavirus infection in nine individuals who stayed one night or more in Yosemite since June of this year. Eight of the confirmed cases developed hantavirus pulmonary syndrome (HPS). Three cases of HPS have resulted in fatality; the six other individuals have recovered. The confirmed cases of hantavirus infection were in seven individuals from California, one from Pennsylvania, and one from West Virginia.

View frequently asked questions about hantavirus in Yosemite - updated September 12, 2012.

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General information about hantavirus


Information for health care providers

Did You Know?

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This year, Yosemite Conservancy will provide over $9 million in annual support to Yosemite. This funding will restore trails and habitat, protect wildlife, support art & theater programs, and more. Join to become a Friend of Yosemite today. More...