Life in the Time of Covid-19: Use of Masks

One of the most alarming aspects of the COVID-19 virus is data that suggests that the virus can be spread by those who are asymptomatic or pre-symptomatic; that is, people can spread the virus to others without realizing they are ill.  As early as January 24, 2020, some health agencies (e.g., in Hong Kong) called … Continue reading “Life in the Time of Covid-19: Use of Masks”