Jul 17, 2020
Are people who test positive for weeks, or even months still
infectious? Are face shields more effective than masks? If COVID-19
is airborne, does this mean we don’t have to be as concerned about
surfaces? If a person tests positive multiple times, is each new
test considered a new “case?” If you’re sick with COVID and you
wear a mask, will you get sicker because you’re breathing in more
virus? Would the virus disappear if everyone quarantined?
Dr. Caitlin Rivers from the Center for Health
Security and Dr. Josh Sharfstein address your
questions submitted to publichealthquestion@jhu.edu