In the 1970s, India faced nearly 200,000 polio cases each year. This was not unusual, before vaccines became widespread, diseases we now rarely think about, like polio, caused unnecessary death and immense suffering. Measles, for instance, claimed an estimated 2.6 million lives annually before its vaccine was introduced in the early 1960s.To ensure every child benefits from vaccines and is protected from preventable diseases, we must learn from successful campaigns, including the global effort to eradicate polio.Since the global push to eliminate polio began in 1988, cases have dropped by 99.9%. India was officially declared polio-free on March 27, 2014, by the World Health Organization (WHO), following the last reported case of wild polio on January 13, 2011, and a subsequent three-year period without any new cases. This marked one of the most formidable milestones in public health: India—and the entire South-East Asia Region was certified polio-free, despite limited resources and enormous challenges. On World Polio Day, we take a closer look at how the polio vaccine helped the world stop a global threat.What is Polio?Poliomyelitis, or polio, is a viral disease that in its early stages can cause fatigue, headaches, stiffness, and limb pain after exposure to the poliovirus, according to the World Health Organization (WHO). About one in 200 infections leads to paralysis, and 5–10% of those paralyzed may die if the disease immobilizes their breathing muscles. While polio mainly affects children under five, anyone who is unvaccinated is at risk.In the 19th and 20th centuries, frequent polio outbreaks made it one of the most feared diseases in the United States. The deadliest outbreak occurred in 1952, claiming more than 3,000 lives, according to US public health data.Polio Affected Hundreds Of Thousands Of AmericansThe United States faced its worst polio outbreak in 1952, with nearly 58,000 cases of paralysis and just over 3,000 deaths. Thanks to widespread vaccination, polio was eliminated in the country by 1979.Polio Eradication In IndiaIndia launched the Pulse Polio Immunization Programme on 2 October 1994, at a time when the country accounted for nearly 60% of all polio cases worldwide. Two decades later, on 27 March 2014, India was officially declared polio-free by the World Health Organization, following the last reported case in Howrah, West Bengal, on 13 January 2011, according to WHO records.The success of this campaign hinged on ensuring vaccines reached every child, including those in the most remote and vulnerable communities. Strong commitment at all levels, from policymakers and health authorities to frontline workers, partners, and community volunteers ensured that life-saving polio drops were delivered to children wherever they were, whether at home, in school, or while traveling.About The Polio VaccineThe first polio vaccine was developed in the early 1950s by Dr. Jonas Salk and approved for use across the United States in 1955. This injectable, inactivated polio vaccine (IPV) is still in use in some countries today.In the late 1950s and early 1960s, Dr. Albert Sabin developed a second option: the oral polio vaccine (OPV). Introduced into the US immunization schedule in 1961, it was inexpensive and easy to administer, which helped it become the most widely used polio vaccine in national immunization programs around the world. While it’s no longer used in the US, it remains especially effective in developing countries.The two main types of polio vaccines are:Inactivated Polio Vaccine (IPV)Introduced in the US in 1955The only polio vaccine used in the US since 2000Given via injection, requiring a trained health worker and sterile equipmentOral Polio Vaccine (OPV)Introduced in the US in 1961The most widely used polio vaccine globallyAdministered orally and can be given by trained volunteersHow Polio Vaccine Saved World From A Health Crisis Polio vaccines have played a key role in eliminating the wild form of the disease from many parts of the world, including the Americas, Europe, Southeast Asia, and Africa, according to the World Health Organization (WHO). Czechoslovakia was the first country to show that nationwide eradication of wild poliovirus was possible, achieving this in 1960 after a strong vaccination campaign in which roughly 93% of children received the oral polio vaccine.Despite these successes, wild poliovirus remains endemic in a few regions, notably Afghanistan and Pakistan.
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