INFECTIOUS DISEASES:
Clues to the Animal Origins of SARS
Martin Enserink
On 23 May, Chinese researchers announced that they had found the virus that causes severe acute respiratory syndrome (SARS) in civet cats, a species eaten as a delicacy in China. Just as the results were announced, a new cluster of 11 probable cases surfaced in Toronto, 2 weeks after the Canadian city had been declared SARS-free.