What is sars?

Severe acute respiratory syndrome (SARS) is an illness that first infected people in Asia, North America, and Europe in 2002. It causes a fever, muscle aches, and a sore throat. Some people also get a dry cough or diarrhea. Most people get pneumonia. In some cases, these symptoms get worse very quickly.

SARS is usually spread through saliva or droplets from coughing. Researchers are testing a vaccine for SARS. But it may be years before it is available.

Severe SARS can be very serious. For this reason, it is usually treated in the hospital. With treatment, most people recover.

A doctor may think that a person has SARS if the person:

• Has a fever and has a cough or trouble breathing, and
• Had close contact with a person who may have SARS or was in an area with a SARS outbreak 10 days before symptoms appeared.

The main symptoms of SARS are a fever, a dry cough, shortness of breath, or difficulty breathing. A person with SARS also may experience a headache, muscle aches, a sore throat, fatigue, and diarrhea. An older person may feel generally unwell (malaise) and lose his or her appetite but not have a fever. For some people the symptoms get worse quickly, making a hospital stay necessary.

The incubation period—the time from when a person is first exposed to SARS until symptoms appear—is usually 3 to 7 days but may be as long as 10 days. Experts believe a person can spread the illness to others only while he or she has symptoms. As a precaution, though, the U.S. Centers for Disease Control and Prevention (CDC) recommends that people who have SARS stay home, except for doctor visits, until 10 days after their symptoms have gone away.

Severe cases of SARS often require a hospital stay, especially if breathing problems develop. You will be placed in isolation to prevent passing the disease to others. There is no treatment that can cure SARS, but your symptoms will be treated to keep you as comfortable as possible.

The best way to prevent the spread of SARS is to avoid areas where there is an outbreak and avoid contact with people who may be infected. You can also reduce your risk of infection by washing your hands often with soap or alcohol hand cleaners. If an outbreak occurs, try to avoid large public gatherings. The U.S. Centers for Disease Control and Prevention (CDC) does not recommend wearing face masks in public to prevent infection, although this is a common practice in Asian countries such as Japan.

Researchers are currently trying to develop vaccines to prevent SARS infection. But no vaccines are being tested in humans yet.

If you have a fever and have been to a SARS-affected area or near someone with SARS, your doctor might suspect SARS. They may order tests like a blood sample, sputum sample, or nasal swab. A chest X-ray may be done if you're short of breath or coughing. You may also need blood tests.

• Be safe with medicines. Take your medicines exactly as prescribed. Call your doctor if you think you are having a problem with your medicine.
• Take an over-the-counter pain medicine, such as acetaminophen (Tylenol), ibuprofen (Advil, Motrin), or naproxen (Aleve). Read and follow all instructions on the label.
• Do not take two or more pain medicines at the same time unless the doctor told you to. Many pain medicines have acetaminophen, which is Tylenol. Too much acetaminophen (Tylenol) can be harmful.

Like most respiratory illnesses, SARS is spread mainly through contact with infected saliva or droplets from coughing. You cannot get SARS from brief, casual exposure to an infected person, such as passing someone on the street. In general, you need to have close contact to become infected. Close contact includes living with or caring for a person who has SARS or breathing in air that an infected person exhaled. But under some conditions, SARS has spread within an apartment building and to health care workers. Outbreaks of SARS do not appear to be seasonal.

An infection may develop after:

• Sharing food or drink with an infected person.
• Hugging or kissing a person who has SARS.
• Close contact with an infected person.
• Getting the tiny droplets on your hands by touching contaminated surfaces or objects and then touching your eyes, nose, or mouth.

It is possible SARS can be transmitted in other ways, such as by touching objects that are contaminated with feces from an infected person. This could happen if people do not wash their hands after using the bathroom.

The disease does not appear to spread from a mother to her baby at birth.

Severe acute respiratory syndrome (SARS) is a respiratory illness that first infected people in parts of Asia, North America, and Europe in late 2002 and early 2003. SARS is caused by a type of coronavirus, which sometimes causes mild to moderate upper respiratory illness, such as the common cold. Most people get pneumonia. In some cases, these symptoms get worse very quickly.