Polio Health Emergency Declared by WHO

The World Health Organization (WHO) has declared polio to be an international health emergency, with ten countries affected by documented outbreak and spreading of the disease.  More from Time.com:

Especially concerning was the fact that three countries—Pakistan, Syria, and Cameroon—showed higher rates of transmission of wild polio virus to other nations even during the disease’s more dormant period. That raises the possibility that when the virus becomes more active, from April into the summer, transmission rates will peak even more. “If the situation as of today and April 2014 is unchecked, it could result in the failure to eradicate globally one of the world’s most serious vaccine preventable diseases,” Dr. Bruce Ayleward, WHO’s assistant director general for polio, emergencies and country collaboration said during a conference call.

The emergency measures require that residents in the three countries actively exporting polio virus receive a dose of either of the two polio vaccines four weeks-to-12 months before traveling, and that they be provided with proof of their immunization. The remaining seven affected countries are encouraged, but not required, to do the same. The WHO recommended these measures remain in place until countries show no new transmission of polio for six months and evidence of eradication efforts, including immunization programs. While not legally binding, the cooperation of affected countries is expected, Ayleward said. The WHO’s action may also help governments to make polio immunization a priority; in 2009, a similar declaration during the H1N1 pandemic allowed nations to prioritize health care services to protect and treat patients affected by the flu.

Health officials have been getting closer to making polio the second disease, after smallpox, to be eradicated by vaccinating children in countries where the wild virus continues to circulate. But social unrest and political conflict have interrupted immunization programs—some health workers have become targets of violence in Pakistan, for example, while growing populations of displaced residents such as refugees who are without access to health care services also provide fertile conditions for the virus to spread. Seven of the 10 countries now reporting wild polio virus have been successful at eliminating the disease in the past, but have been reinfected in recent years.

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