Why was the US slow to stand up testing and is this improving? Should you wear a cloth mask in your daily activities? Jason Farley, an infectious disease-trained nurse epidemiologist at the Johns Hopkins School of Nursing, talks to Stephanie Desmon and breaks down the complications of testing for COVID-19 and why recommendations on the public's use of masks may be evolving.
Learn more: jhsph.edu/covid-19
Public Health On Call