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