Cases of polio-like condition top 200 in 2018

There have been 201 confirmed cases of acute flaccid myelitis in the U.S. in 2018, a record number since cases of the mysterious, polio-like condition first spiked in 2014. State and local health departments are still investigating potential cases of AFM, which mainly affects children. Experts still don't know what causes AFM. They also don't know why the number of cases has been higher on alternate years — there were 35 cases in 2017, 149 in 2016, 22 in 2015, and 120 from August to December 2014. Last year, the CDC established a task force to team up with the scientific community to figure out the cause of AFM and explore ways to prevent or treat the condition.