THE official line on SARS has been thus: the virus causes serious disease, so an infection can always be identified and controlled.
Canadian officials insist that people in British Columbia who apparently developed mild disease after infection with the SARS virus were not really infected at all, while the World Health Organization maintains that while such mild cases might exist there is evidence they cannot spread the disease.
But what if these reassurances are wrong? If people can catch the virus, yet not get sick enough to be diagnosed and isolated, then SARS will be able to lurk undetected in…
