50%
They are talking about half the population getting it and 100,000 dying, that is hardly 50%. It is less than 0.1%.
The 150 million mortality figure is out of a world population of over 4 Billion.
So9
See post 26 (if you haven't already...) It is 50% for the flu as it now exists, which is chiefly transmitted from fowl to humans.