In order to return to some sense of “normal,” roughly 85% of Americans will need to get the COVID-19 vaccine to bring the pandemic to a halt, per Anthony Fauci, M.D., the nation’s leading infectious disease expert. Vaccine distribution is well underway in most states and President Joe Biden has vowed to have 100 million doses administered to Americans in his first 100 days in office. It’s a lofty goal, as only about 9.5 million people have received both doses of the vaccine at the time of publication. Data shows that the authorized coronavirus vaccines from Pfizer-BioNTech and Moderna, both of which use mRNA technology, can help protect people against developing a severe case of COVID-19. But there’s still one big question that researchers are trying to answer: Can you still spread COVID-19 to others even after you’re fully vaccinated? To read the full story.