Tuesday 11 February 2014

H7N9 snapdate: age and sex pyramid for 227 laboratory confirmed cases

Click on image to enlarge.
Disease due to H7N9 infection is still most severe among males, as it was from very early on in the outbreak in 2013. 

Males comprise 68% of all cases.

The median age is 58-years and the median 54-years.

Click on image to enlarge.
If we follow some age bands with time we can see that since the last update 5-Feb, the 50-69-year age band has settled in as the most frequent source of H7N9 cases in China and a spike in younger cases occurs in the last week of Jan and 1st week of Feb.

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