(I) Life in the cities, which were badly affected by SARS, is quickly returning to normal. (II) The fight against SARS in China has relied mainly on traditional methods; that is, the isolation of suspected cases and putting anyone with whom they have been in close contact into quarantine. (III) But such measures may not have been the only reason for the fall-off in cases. (IV) Another possibility is that SARS failed to get greater hold because many people had already been exposed to a similar virus. (V) There have also been suggestions that the first outbreak in southern China stopped so abruptly because of the onset of summer.