Polio has been declared eradicated from Africa, the World Health Organization said Tuesday, Aug. 25th. The Wild strains of polio continues to circulate now in two countries: Afghanistan and Pakistan.

“Today we come together to rejoice over a historic public health success, the certification of wild poliovirus eradication in the African region,” Tedros Adhanom Ghebreyesus, director-general of the World Health Organization, said during a livestreamed event. “The end of wild polio in Africa is a great day,” said Tedros, who is also the chair of the polio oversight board. “Your success is the success of the world. None of us could have done this alone.”

 

A large part of the eradication effort has been through the Global Polio Eradication Initiative (GPEI), which was created in 1988 and is led by national governments and five partners — Rotary International, WHO, UNICEF, US Centers for Disease Control and Prevention and the Bill and Melinda Gates Foundation. US Health and Human Services Secretary Alex Azar, US Centers for Disease Control and Prevention Director Dr. Robert Redfield and Bill and Melinda Gates Foundation co-chair Bill Gates congratulated Africa on the eradication of polio during the certification event for this milestone on Tuesday.

 

“Today is a historic day for global health, and it’s a cause for celebration for everyone who works to improve Africans health,” Azar said in a prerecorded message. “Congratulations to everyone who helped make it possible.” Officials wanted to make sure polio was really gone and have waited four years since the last case of wild virus was diagnosed.

 

Rose Gana Fomban Leke, who chairs African Regional Certification Commission for Polio eradication, told CNN that the decision to declare the region free of the virus came after many years of polio surveillance, immunization, and laboratory analysis of the region’s 47 member states on the continent. “The work has gone on for years and now we can see the results. It’s such a huge milestone. I’m confident to say that in the region, for the last four years we haven’t seen one poliovirus,” she said.

 

According to a WHO statement, “The last case of wild poliovirus in the region was detected in 2016 in Nigeria. Since 1996, polio eradication efforts have prevented up to 1.8 million children from crippling life-long paralysis and saved approximately 180,000 lives.”

“Every year, hundreds of thousands of cases due to wild polio virus are prevented. Well over 10 million cases have been averted since large-scale administration of oral polio vaccine began 20 years ago.” That’s why kids in developing countries get two doses of vaccine — the oral vaccine, which is given as easy-to-administer drops, and a shot, which is made using a completely inactivated polio virus that cannot be re-activated. Children in developed countries only get the shot, but they need four doses to be completely protected.

 

“Circulating vaccine-derived polioviruses in the past have been rapidly stopped with 2–3 rounds of high-quality immunization campaigns. The solution is the same for all polio outbreaks: immunize every child several times with the oral vaccine to stop polio transmission, regardless of the origin of the virus,” WHO said.