I just came across this interesting set of graphs (Wikipedia) showing the spread of H1N1 globally. BTW, I still believe it should be called the 'American flu', cos H1N1 is confusing since there are so many H1N1s around.
Note the 2 front runners, Mexico and US. So it should be American flu, should it not?
Incidentally the graphs are on a semi-log plot which means that a straight line would represent an exponential rate of growth. What we can see is that all the plots are biphasic, meaning they have at least two slopes - and initial rapid exponential growth which then flattens out to a slower growth. I guess this means that either the virus loses steam, or that more extreme control measures in the community begin to take effect.
What should be noted also is the divergence of the infection and the death plots. A month ago, total deaths were approximately (hard to read off a semi-log plot) 1.2% of total infections, but now it is less than 1% (closer to about 0.55%).
This graph on a linear plot shows the divergence clearer.
5 years ago