Researchers now believe mutated strain of enterovirus D-68 caused more than 100 children to suffer sudden paralysis in four years ago . The B1 strain first popped up the last year and has coding differences that make it similar to polio . None of the children monitored in the new study have fully recovered - suggesting the paralysis is permanent .
Researchers now believe mutated strain of enterovirus D-68 caused more than 100 children to suffer sudden paralysis in the last year . The B1 strain first popped up four years ago and has coding differences that make it similar to polio . None of the children monitored in the new study have fully recovered - suggesting the paralysis is permanent .