Severe acute respiratory syndrome (SARS) is a viral illness that seems to be spread when an infected person sneezes or coughs on someone else. Symptoms of SARS include high fever, headache and body ache, and eventually, pneumonia.
SARS emerged in 2003 in Asia, and within a few months, infected 18,000 people world-wide and caused more than 770 deaths. In the United States, however, only eight people who had traveled to Asia were diagnosed with SARS in 2003, and there were no SARS cases reported in the U.S. in 2004.
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