A monster representing an influenza virus hitting a man over the head as he sits in his armchair. Pen and ink drawing by E. Noble, c. 1918.

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Credit

A monster representing an influenza virus hitting a man over the head as he sits in his armchair. Pen and ink drawing by E. Noble, c. 1918. Attribution 4.0 International (CC BY 4.0). Source: Wellcome Collection.