Yes, but, Canada
researchers discovered that
lots of their patients
tested negative
for "SARS coronavirus."
Coronavirus
may be some kind of
artifact that latches on
to many sick folk...
Yes - 60%. So there are a few possibilities here:
1. The coronavirus is something the victims already had when they got sick. If so, the infective agent seems able to actually start a mutation in the already present coronavirus, which is scary as all h*ll. And if the mutated coronavirus is able to infect another victim with sars, that may tell you that the infective agent is basically unseen but able to hitch a ride in the coronavirus.
2. The coronavirus is really the infective agent, but is mutating so fast and to such a degree that it's not obvious as coronavirus in the cases where it's not found.
3. Sars and corona has nothing to do with each other, basically leaving the coronavirus as not an artifact of the sars infection or even influenced by it - just pure coincidence. That would mean that no one has the slightest idea what causes sars, and that every diagnostic lead being followed is worthless.
Oh, and sars has nothing to do with flu. The most deadly flu known to date - the spanish - had a mortality rate of something over 2%. Sars, in the most optimistic scenarios, stands at the double, realistic scenarios gives us around 10%, and worst case (but highly believable) would fall anywhere between 70 - 90%.