"Speaking of the wages of sin, the H5N1 virus is getting around pretty fair in south China. Suggest all keep an eye on the situation. Probability is pretty low, but could require pulling the kids out of school and not going to work for some weeks. Could kill 90% of infected people over forty five if it goes person to person and once the hospitals are overloaded. Maybe a third to a half of the younger ones. Maybe way less, way less. Bears watching."
And in other news, the same virus has reached Croatia. Surprise surprise, we (Europeans) came up with a cure. As the results show atm... it's 100% effective (of course there might be a couple deaths if it reached pandemic levels, but the chance of that happening is very low).
The percentages you were stating... are idiotic; no virus with 90% mortality rate could have any possibility of actually killing large amounts of people because it would self-contain itself. Plus... in addition to Tamiflu other EU countries are hastening the research of similar "cures". And yes, I know... cure is the wrong word for it :) Antiviral drug is more like it.
I presume that you found these percentages on some crazy christian/islamic/jewish page, and he probably called it divine retribution or some similar religious BS.