From the Don't Eat the Guano files...

The New York Times reports that two groups of researches have independently identified the Chinese horseshoe bat as the natural reservoir for the SARS virus.

The bats apparently are healthy carriers of SARS, which caused severe economic losses, particularly in Asia, as it spread to Canada and other countries. In Asia, many people eat bats or use bat feces in traditional medicine for asthma, kidney ailments and general malaise.

Thanks to an unnamed source for the link.