NEW YORK (CBSNewYork/AP) — U.S. health officials on Tuesday reported a jump in cases of a rare paralyzing illness in children, and said it seems to be following an every-other-year pattern.
At least 62 cases have been confirmed in 22 states this year, and at least 65 additional illnesses in those states are being investigated, according to the Centers for Disease Control and Prevention. Similar waves of the same illness occurred in 2014 and 2016.
Health officials call the condition acute flaccid myelitis. The CDC would not release a list of the states reporting probable or confirmed cases.
Locally, the New Jersey’s Department of Health confirms the state has three confirmed cases of AFM, with three additional reports of the virus under investigation. New York’s Department of Health says the state is looking into two suspected cases of AFM, but by late Tuesday none of the cases were confirmed
CDC officials say they haven’t found the cause. Some possible suspects, such as polio and West Nile virus, have been ruled out. Another kind of virus is suspected, but it’s been found in only some of the cases.
“This is a mystery so far,” the CDC’s Dr. Nancy Messonnier said in a call Tuesday with reporters.
About 90 percent of the cases are children who have suffered muscle weakness or paralysis, including in the face, neck, back or limbs. The symptoms tend to occur about a week after they had a fever and respiratory illness.
It is “a pretty dramatic disease,” but fortunately most kids recover, Messonnier said.
The cases in 2014 and 2016 were partly attributed to particular strains of respiratory germs called enteroviruses, which spread the most in the summer and fall.
Most people infected with enteroviruses suffer only minor symptoms like cough and runny nose. And though enteroviruses have been detected in some paralysis cases, it hasn’t been found in others, CDC officials say.
Lacking an established cause, health officials confirm cases through a review of brain scans and symptoms.
About 120 confirmed cases were reported in 2014. Another 149 were reported in 2016. In 2015 and 2017, the counts of reported illnesses were far lower.
The cases this year seem to be spread across much of the country, as were the earlier two waves. But mysteriously no other country has reported the emerging every-two-years pattern seen in the U.S., Messonnier said.
The CDC says to be on the lookout for the onset of arm or leg weakness, and loss of muscle tone and reflexes. In addition, some people will experience the following:
- facial droop/weakness,
- difficulty moving the eyes,
- drooping eyelids, or
- difficulty with swallowing or slurred speech.
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(© Copyright 2018 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)