Excitement and relief over news of vaccines that help prevent people from getting sick, winding up in the hospital or dying from COVID-19, the disease caused by the coronavirus, are warranted, says University of Washington’s Dr. Larry Corey. But, these messenger RNA (mRNA) vaccines may not prevent people from getting infected or spreading the virus. Answering questions around how vaccines affect transmission of the virus is “of obvious importance” and research will be conducted once people begin getting vaccinated, Corey…






































