Pneumonia is an acute infection of the lungs. It's a more common problem than most people think. Usually pneumonia is a mild disease, but some forms are very dangerous and require a hospital stay. In all cases, you'll need to seek care from your health care provider.
Pneumonia can affect just one lobe of the right or left lung, a whole lung, or both lungs.
Many different kinds of germs infect the lungs and cause pneumonia. Infected lungs leak fluids and shed dead cells. This material clogs...
Most cases of HPS in the U.S. are
caused by one type of hantavirus found in the deer mouse. People can become
Breathing in tiny airborne particles that come from rodent
Touching rodent urine, saliva, or
Coming in contact with dust contaminated with the
Being bitten by an infected mouse.
North America has never had a known case of one person spreading the illness to another. And people do
not get HPS from farm animals, pets, or insects. But your pet may bring home an
What are the symptoms?
Symptoms usually start 2 to 3 weeks after
a person has been exposed to the virus. Early symptoms may include:
A fever and chills.
Nausea, vomiting, diarrhea, and belly pain.
You quickly will become very sick. Within a few days, you'll start to have more serious symptoms, such as:
A fast heartbeat and fast breathing. These are signs of fluid buildup in the lungs (pulmonary edema).
After a person with HPS starts having
trouble breathing, he or she may die within hours. Most deaths occur within 1 to 2 days after severe breathing problems begin. About 4 out of 10
people who get HPS do not survive.1
How is HPS diagnosed?
will do a physical exam and ask you questions about your symptoms, past
health, and exposure to rodents. You may have other tests, such as chest X-rays, a
complete blood count, and an
oxygen saturation test.
Your doctor will know for sure
that you have HPS only if you have the signs of HPS and if tests show that the
virus is or has been in your blood or tissues.