When COVID-19 or flu viruses kill, they often have an accomplice – bacterial infections
- Written by Hayley Muendlein, Research Assistant Professor of Immunology, Tufts University

The 1918 influenza pandemic resulted in the loss of over 3% of the world’s population – at least 50 million people. But it wasn’t the flu virus that caused the majority of these deaths.
An analysis of lung samples collected...