Researchers now believe this strain of enterovirus D-68 caused more than 100 children to suffer sudden paralysis in the last year . The B1 strain first popped up several years ago and has coding differences that make it similar to polio . None of the strains 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 .