It is crucial for the right people to wear masks, if we were to help stop the spread of COVID-19 in our communities. The good news is, if everyone does this, we can prevent the spread of other infectious diseases as well! Heard that there's a flu epidemic in France now, and hope this will come in helpful them. You can download it here, or look for a translation.

Thanks go to doctors Kenneth Tan Kian Wee and Ariel Quahe for their advice and help in understanding the topic better. Any errors are mine.