The history and science of mask-wearing
![History Science Masks](https://indiabioscience.org/imager/articles/173291/HistoryScienceMasks_4b32b63c5c28c858e051e9d1a2a717a1.jpg)
Masks are one of our simplest, cheapest and most effective allies in the war against COVID-19. In this article, Madhuri looks back at the hundred-year-old history of using masks to prevent plagues and pandemics and the science behind what makes them so strategically important as a public health tool.