04/12/2025
hantavirus has caused deaths in Sierra County CA . If working around areas where rodents habit mask and glove up!!
FOR IMMEDIATE RELEASE
Hantavirus Deaths Reported in Eastern Sierra Region
Loyalton, CA – April 9, 2025
Mono County has reported three recent deaths in the Mammoth Lakes area caused by hantavirus infection, a tragic reminder that, although rare, hantavirus can be extremely serious and often deadly.
What is Hantavirus?
Hantavirus is carried by deer mice, and people become infected by breathing in dust contaminated with rodent urine, droppings, or saliva. This often happens when cleaning cabins, sheds, garages, or other closed-up spaces where mice have been present.
Key Facts:
Hantavirus is not spread from person to person.
Symptoms usually begin 1 to 5 weeks after exposure and may include fever, body aches, headache, vomiting, diarrhea, and abdominal pain.
Cough and shortness of breath may develop after a few days and can lead to respiratory failure and death.
There is no specific cure, but early intensive medical care increases survival chances.
California typically sees three cases of hantavirus per year. With three deaths already this year, the state is well above its average.
Prevention Tips:
Seal any openings larger than ¼ inch where mice can enter, and
use snap traps indoors; avoid sticky traps.
Store food in rodent-proof containers.
Keep woodpiles at least 100 feet from homes or buildings.
Safe Cleaning Practices:
Air out closed buildings for at least 30 minutes before cleaning.
Do not sweep or vacuum rodent droppings, as this can stir up virus particles.
Spray droppings, nests, or carcasses with a 10% bleach solution or a virus-killing disinfectant and allow it to sit for 5 minutes before wiping.
Inspect vehicles, especially the heating and air conditioning systems, for signs of rodent activity.
Rodent-proofing homes and workplaces is important. Mice can enter through very small gaps under doors, around windows, and where pipes or vents pass through walls. Heating and air conditioning ducts should also be checked regularly for holes or damage.
If you or someone you know develops a fever and has been exposed to rodents or cleaned an area with rodent activity, seek medical attention immediately and inform your provider about the possible exposure.
More information is available at the California Department of Public
Health website:
https://www.cdph.ca.gov/Programs/CID/DCDC/pages/hantaviruspulmonarysyndrome.aspx
And on Sierra County’s website:
https://www.sierracounty.ca.gov/658/Hantavirus
Stay safe and help spread awareness.