More than 400 universities are requiring Covid-19 vaccines. But the murky threat of fake vaccination cards worries some students and experts

Eric Feldman of the Law School spoke about the possibility of fake vaccine cards. “It's inevitably dangerous, and it's not going to be easy to root out,” he said. “I worry if this will become a widespread phenomenon. But how many there are, and how much of a risk they pose—we really don't know yet.”

・ From CNN