Some 60% of virus spread starts with those who have no symptoms. A cough or sneeze in the checkout line at the grocery store may elicit fear of COVID-19, but that maskless person quietly sitting next to you on the subway could pose just as much of a threat, public health experts say. Dr. Helen Chu, infectious disease physician at the University of Washington School of Medicine, was featured. 

Scientists turn their attention to finding the rare individuals who have not yet contracted the virus. Christopher Murray, professor of global health and Director of the Institute of Health Metrics and Evaluation was mentioned. 

A big mystery of the COVID-19 pandemic that researchers are baffled by is that some people are exposed to the virus but never get sick even as others are diagnosed with it multiple times, despite being vaccinated. Researchers say figuring out why that happens is an important question, and they're working to find the answer. Dr. Michael Gale, professor of global health, was quoted. 

Around the world, the death rate of children has been dropping dramatically. But a new study in The Lancet Global Health points out an underlying tragedy among the childhood deaths that do occur today. Too many are coming after children have been treated and often discharged from hospitals. Judd Walson, vice chair and professor of global health, is quoted.