Does the COVID vaccine prevent coronavirus transmission? A study at the University of Maryland seeks answer for key pandemic question

Participants must be 18 to 26 years old, enrolled at a participating institution and not have been infected with COVID-19. They have to swab their noses everyday for about four months, complete daily questionnaires about symptoms on an app and get their blood drawn three times, including once at the beginning to determine if they’ve had the coronavirus, according to a study description.