Here's the text of the email that I was sent because 2 weeks ago we stayed in Curry Village:
You are receiving this letter to advise you of a public health matter that has been brought to our attention.
The California Department of Public Health (CDPH) and Centers for Disease Control and Prevention (CDC) recently advised the National Park Service (NPS) and DNC Parks & Resorts at Yosemite (Delaware North) that four individuals who visited Yosemite National Park and stayed in Curry Village in June 2012 contracted hantavirus pulmonary syndrome (HPS). Two of these cases resulted in fatalities.
HPS is a rare but serious disease that can be fatal. Humans can become infected with the virus through contact with the urine, droppings, or saliva of infected rodents, primarily deer mice. Not all mice are infected with the virus, but infected rodents have been found throughout the United States. Most cases of HPS have been infected by breathing small particles of mouse urine or droppings that have been stirred up into the air.
The illness can start from one to six weeks after exposure, with fever, chills, headache, muscle aches, or cough. Other symptoms can include nausea, vomiting, and abdominal pain. The disease progresses rapidly to severe difficulty breathing. Early medical attention greatly increases the chance of survival in cases of HPS. It is recommended that if you, or anyone in your party, has any of the symptoms listed above, particularly fever, muscle aches, or cough, that you seek health care immediately and advise your health care professional of the recent cases of HPS described above.
In conjunction with CDPH and NPS, Delaware North has procedures in place to reduce the risk of HPS, including regular inspection and cleaning of rooms and cabins, exclusion of mice and rodents from structures, good housekeeping and sanitation practices, and increased employee and public awareness. The CDPH and NPS have reviewed and approved the procedures in place for Curry Village.
Yosemite National Park has set up a general, non-emergency phone line for all questions and concerns related to hantavirus in Yosemite National Park. The phone number is 209-372-0822 and it will be staffed from 9 a.m.-5 p.m. daily. For additional information on HPS, visit the CDC's Hantavirus website.
I recognize that this notice may raise concerns on your part, but it is being sent in the interest of public health. If you or any member of your party has the symptoms described, please immediately seek the attention of a medical professional.
DNC Parks and Resorts at Yosemite, Inc.