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Nation/World

May 6, 2014

UN: Spread of polio now a world health emergency

LONDON — For the first time ever, the World Health Organization yesterday declared the spread of polio an international public health emergency that could grow in the next few months and unravel the nearly three-decade effort to eradicate the crippling disease.

The agency described current polio outbreaks across at least 10 countries in Asia, Africa and the Middle East as an “extraordinary event” that required a coordinated international response. It identified Pakistan, Syria and Cameroon as having allowed the virus to spread beyond their borders, and recommended that those three governments require citizens to obtain a certificate proving they have been vaccinated for polio before traveling abroad.

“Until it is eradicated, polio will continue to spread internationally, find and paralyze susceptible kids,” Dr. Bruce Aylward, who leads WHO’s polio efforts, said during a press briefing.

Critics, however, questioned whether yesterday’s announcement would make much of a difference, given the limits faced by governments confronting not only polio but armed insurrection and widespread poverty.

“What happens when you continue whipping a horse to go ever faster, no matter how rapidly he is already running?” said Dr. Donald A. Henderson, who led the WHO’s initiative to get rid of smallpox, the only human disease ever to have been eradicated.

The WHO has never before issued an international alert on polio, a disease that usually strikes children under 5 and is most often spread through infected water. There is no specific cure, but several vaccines exist.

Experts are particularly concerned that polio is re-emerging in countries previously free of the disease, such as Syria, Somalia and Iraq, where civil war or unrest now complicates efforts to contain the virus. It is happening during the traditionally low season for the spread of polio, leaving experts worried that cases could spike as the weather becomes warmer and wetter in the coming months across the northern hemisphere.

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