Severe Acute Respiratory Syndrome (SARS) virus
Just as World Health Organization officials say the SARS epidemic is coming under control, officials in Toronto worry a new outbreak could mean a return to the travel advisory list. Another cluster of SARS-infected patients in Toronto was reported May 22, and four days later the WHO put Toronto back on its list of SARS-affected areas. U.S. officials in North Carolina confirmed Tuesday that a man had come down with SARS after a trip to Toronto in what appears to be the first exported case linked to Toronto's second outbreak. The disease has killed more than 780 and infected more than 8,400 people worldwide.
Centers for Disease Control and Prevention