Sorry to take this OT for a second . . . but to answer your question Koala, here's a prevalence map for the world:
Unfortunately there are lots of "probables" (guesses, really) because most countries don't keep adequate stats (including the US and Canada).
I think "high risk" is defined as over 50/100,000, so that map doesn't show EXTREMES, like 200+ either.
Cherie
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