If you spend time hiking or camping in the eastern half of the United States, chances are you’ve had encounters with ticks, ...

-- A deer mouse collected near Mount Laguna on Aug. 24 during routine monitoring has tested positive for hantavirus. Hantavirus in wild rodents is relatively common in San Diego County.

The first Douglas County case of hantavirus in four years was reported by Carson City Health and Human Services on Wednesday. A man under 50 years of age was hospitalized after inhaling or coming in ...

Plus, not all deer mice can get you sick—an older study estimated roughly 10% to 14% of deer mice carry hantavirus, while a 2024 study of rodents in New Mexico found less than 9% of deer mice ...

The racoon-sized mammal is distantly related to pigs, sheep and hippos, but has distinctive features in common with cetaceans (Image: Jacqueline Dillard) Indohyus was about the size of a domestic cat ...

SOUTH LAKE TAHOE, Calif. – A decade ago, nobody reported seeing rats in their homes around the South Shore of Lake Tahoe, but that has now changed. Exterminators are very […] ...

Deer mice are the most common carriers of the virus. Other carriers include the white-footed mouse, cotton rat, and rice rat.

We believe that deer mouse numbers are high this year in Mammoth (and probably elsewhere in the Eastern Sierra). An increase in indoor mice elevates the risk of Hantavirus exposure.

Deer mice — common in the Eastern Sierra — have brown or tan fur with white bellies, legs and feet, according to Orkin.com. Their tails are dark on top and light underneath.

In 2024, they identified 25 mice carrying hantavirus. So far this year, they've discovered seven — four in Cuyamaca State Park, two in Escondido, and one in San Clemente.

More than half of U.S. cases occurred in six Western states: Colorado, New Mexico, Arizona, Utah, Nevada, and California. All have vast rural areas where deer mice thrive.

The most common hantavirus that causes HPS in the U.S. is spread by the deer mouse. Thirty-eight percent of people who develop respiratory symptoms may die from the disease.