The World Health Organization has admitted that a recent deadly outbreak of Polio in Syria is down to the Polio vaccine itself.
Despite the fact that at least 17 children in eastern Syria have been paralyzed from the recent outbreak of Polio, W.H.O. officials are attempting to get into Syria and vaccinate yet more children.
Nytimes.com reports: It is the second outbreak of the crippling disease to hit Syria since the war began, and largely reflected the inability of health workers to immunize all children caught in conflict zones where access is difficult and sanitation is poor.
The polio virus, once thought to verge on eradication, is one of the most contagious diseases in inadequately protected areas. One confirmed case of paralysis is considered an outbreak, as doctors assume it means up to 200 other people may have been exposed to the virus.
Tarik Jasarevic, a spokesman for the World Health Organization in Geneva, said there was an urgent need to vaccinate more than 400,000 children under the age of 5 in the Deir al-Zour area, where the outbreak was first confirmed in an announcement made by the organization on June 8. He described the outbreak as “very serious.”
Sixteen of the paralyzed children were from Mayadin, south of Deir al-Zour, and one was from farther north in Raqqa, the Syrian redoubt of the Islamic State extremist group. The entire region has been upended by fighting.
All of the children developed the paralysis between March 3 and May 23, Mr. Jasarevic said.
Unlike Syria’s first polio outbreak in 2013, caused by a wild strain that paralyzed 36 children before it was brought under control, the new outbreak derived from the polio vaccine itself, Mr. Jasarevic said.
The vaccine, a weakened form of the polio virus that triggers the immune system’s response, is secreted in the waste of vaccinated children, and over time can mutate into an infectious strain that may afflict the unvaccinated. The risks are especially high in areas where not all children have received the vaccine and where the mutated virus can spread from contaminated sewage or water.
“These vaccine-derived outbreaks really are a marker of poor vaccination and poor sanitation in the community,” said Dr. Homer Venters, director of programs at Physicians for Human Rights, an international aid group based in New York that supports humanitarian work in war zones, including Syria and Yemen.
Along with a recent measles outbreak near Damascus, the Syrian capital, and a cholera scourge raging in war-torn Yemen, Dr. Venters said, the new polio outbreak “is another indication that public health systems have been decimated by these conflicts.”
As of late March and April, Mr. Jasarevic said, there had been some vaccinations in parts of the Deir al-Zour area, “but security remained an issue and that’s why many children were not vaccinated.”
He also said it was unclear whether the afflicted child in Raqqa meant that the virus was circulating there or whether the child had traveled to Raqqa and then developed the case.
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