MDH: 7th Minnesota case of AFM 'under review' by CDC

A seventh Minnesota case of acute flaccid myelitis, a rare illness with polio-like symptoms, is under review by the Centers for Disease and Control, according to the Minnesota Department of Health.

An MDH official says so far the CDC has confirmed six cases of AFM in Minnesota. A seventh case has been "clinically diagnosed," but remains under review by the CDC.

The condition causes muscle weakness, which can result in paralysis.

The cause for the rare condition is still unclear.

So far this year, there have been 62 cases of AFM across the nation.