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Sudden increase in acute flaccid mucinitis in the United States

A total of 252 cases of disorders known as acute flaccid myelitis have been investigated across the country, with a rise of 33 since last week.

Confused by the sudden increase in children with gun or leg paralysis in the United States, health workers said on Tuesday they are investigating whether they can cause a virus or an autoimmune disorder.

A total of 252 cases of condition known as acute flaccid myelitis (MFA) are being investigated across the country, 33 since last week, said Nancy Messonnier, director of the National Center for Immunization and Respiratory Diseases at the Control Center. and Prevention of Disease (CDC).

So far, 80 proven cases in 2018 appear to be at the same rate as previous highs such as 2014 (120 cases) and 2016 (149 cases) compared to Messonnier.

Since 2014, in which the syndrome has emerged, more than 400 cases have been confirmed by laboratory tests.

Several dozen cases were recorded in 2015 and 2017.

Messonnier said he understood the alarm from his parents, but stressed that the disorder was still "rare" in terms of frequency.

Most cases occur in children from two to eight years. Almost all of them had fever and respiratory illness three to ten days before suddenly had paralysis in their hands or feet.

In some of the children, paralysis later disappeared, but at least half did not recover, Messonnier said.

The center analyzed 125 samples of spinal cord fluid, and half of them tested positive for rhinovirus or enterovirus, which usually produces symptoms such as fever, nose leakage, vomiting, diarrhea, and body pain.

However, scientists are still confused about the precision of sudden paralysis, since these viruses are common, but the MVP is not.

"We are trying to find out what are the causes that could cause someone to develop the MFA," Messonnier told reporters.

"This may be one of the viruses we've already discovered, maybe a virus we have not discovered yet, or maybe the virus is triggering another process that actually triggers MFA, through an autoimmune process," he said.

"The CDC is an agency administered by science, and science is not giving an answer at this point," he added.

It may be a frustrating matter for parents that there is no way to prevent them, nor specific therapies or interventions.

"Parents and caregivers are encouraged to seek immediate medical assistance for a child who develops a sudden hand or foot weakness," the latest CDC report on MFA reported on Tuesday said.

Messonnier said the CDC did not follow all MVP cases since 2014, which has created some gaps in the knowledge of the federal disease agency, which experts are now trying to resolve.

A child with a MVP died in 2017, according to a report.

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