Black Health Block

October 19, 2021

PrincipIe Investigator’s Corner

I started wearing my N95 mask on airplanes in January of 2020.  I was watching the news daily and reading about the fast spread of COVID-19 in China and in other countries.  Several scientists had predicted that  COVID-19 was not going away and that millions of people would die worldwide.  It was clear to me…