The Centers for Disease Control and Prevention (CDC) issued an update to the national investigation of acute neurologic illness with focal limb weakness of unknown etiology in children and reported an addition 13 cases have been identified.

Numerous, spheroid-shaped Enterovirus-D68 (EV-D68) virions/Cynthia S. Goldsmith, Yiting Zhang
Numerous, spheroid-shaped Enterovirus-D68 (EV-D68) virions/Cynthia S. Goldsmith, Yiting Zhang

As of November 20, CDC has verified reports of 88 cases in 32 states, up from 75 cases one week ago.

The CDC reported in late September that the United States is currently experiencing a nationwide outbreak of EV-D68 associated with severe respiratory disease. The possible linkage of this cluster of neurologic disease to this large EV-D68 outbreak is part of the current investigation.

The number of new Enterovirus D68 cases in the United States are decreasing. As of  November 20, 2014, CDC or state public health laboratories have confirmed a total of 1,121 people in 47 states and the District of Columbia. Reports from most states over the last couple months have indicated reduced EV-D68-like illness activity. However, the CDC warns that EV-D68 infections could continue through late fall.

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