Can new variants of the coronavirus keep emerging? - New York Post
And each time a virus makes a copy of itself, a small mutation could occur.
Adam Lauring, a virus and infectious disease expert at the University of Michigan.
As more people get the shots, the virus would have to be able to spread through people who have some immunity for it to survive, says Dr.
“The virus could take on a mutation that makes the immune response less effective,” he says.