[per loin]

A quick look at the land masses along the two 45 parallels ought answer that question. Only a small percent of the earth's population lives south of 30 degrees south latitude.

[TaxRelief]

One would expect outbreaks in Auckland, Wellington, Sydney, Johannesberg (especially), Christ Church, Santaigo, Buenos Aires (also especially) and other South African locations, if SARS was a winter spreader.