WHYY By People wearing face masks as a precaution against the coronavirus move along the Schuylkill River Trail as tree blossoms with spring colors, Wednesday, April 14, 2021, in Philadelphia. (AP Photo/Matt Rourke) This is one of a series of articles in which reporters from WHYY’s Health Desk Help Desk answer questions about vaccines and COVID-19 submitted by you, our audience. Ian Snyder is 25, and overall he’s not at high risk for COVID-19. But he didn’t take any chances this past winter. He didn’t see his parents for months, because he was worried about spreading the coronavirus to them.