A new deadly strain of “bird flu” – coded H7N9 – has broken out in the Shanghai area of China.

Is it more deadly than H5N1 ? H1N1 ? H7N7 ? Or H2N2 even ?

We weren’t sure. So we took a look at the data and… well, you can guess the rest.

See the visualisation

All the data, complete list of flu strains and extra background information : http://bit.ly/KIB_influenza

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