To fight the disease, Dr Wu invented the surgical mask we all know today, with cotton and gauze plus a few layers of cloth to act as filters. With the addition of other measures like establishing quarantine stations and travel restrictions, he helped put an end to the plague by April 1911.
This Google Doodle comes just about a year after the tribute to Dr Ignaz Semmelweis, the father of hand hygiene. Both are still immensely relevant, with the COVID-19 pandemic still being the threat that it is. So remember to wash your hands regularly, and don’t forget your mask.