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Poliomyelitis (/ ˌ p oʊ l i oʊ ˌ m aɪ ə ˈ l aɪ t ɪ s / POH-lee-oh-MY-ə-LY-tiss), commonly shortened to polio, is an infectious disease caused by the poliovirus. [1] Approximately 75% of cases are asymptomatic; [5] mild symptoms which can occur include sore throat and fever; in a proportion of cases more severe symptoms develop such as headache, neck stiffness, and paresthesia.
The history of polio (poliomyelitis) infections began during prehistory. Although major polio epidemics were unknown before the 20th century, [1] the disease has caused paralysis and death for much of human history. Over millennia, polio survived quietly as an endemic pathogen until the 1900s when major epidemics began to occur in Europe. [1]
A child receives oral polio vaccine during a 2002 campaign to immunize children in India. Poliovirus. Polio eradication, the goal of permanent global cessation of circulation of the poliovirus and hence elimination of the poliomyelitis (polio) it causes, is the aim of a multinational public health effort begun in 1988, led by the World Health Organization (WHO), the United Nations Children's ...
As of 2014, polio virus had spread to 10 countries, mainly in Africa, Asia, and the Middle East, with Pakistan, Syria, and Cameroon advising vaccinations to outbound travellers. [112] Polio vaccination programs have been resisted by some people in Pakistan, Afghanistan, and Nigeria - the three countries as of 2017 with remaining polio cases.
In 1954, the year leading up to the announcement, polio was killing more American children than any other infectious disease. Jonas Salk 's vaccine was made ready for its third and final field tests. It became the most elaborate program of its kind in history, involving 20,000 physicians and public health officers, 64,000 school personnel, and ...
Polio eradication, the goal of permanent global cessation of circulation of the poliovirus and hence elimination of the poliomyelitis (polio) it causes, is the aim of a multinational public health effort begun in 1988, led by the World Health Organization (WHO), the United Nations Children's Fund (UNICEF) and the Rotary Foundation. [55]
Polio: An American Story by David M. Oshinsky, professor of history at the University of Texas at Austin, documents the polio epidemic in the United States during the 1940s and 1950s and the race to develop a vaccine, which led to 2 different types of polio vaccine: inactivated poliovirus vaccine, developed by a team led by Jonas Salk, and oral poliovirus vaccine, developed by a team led by ...
Albert Sabin, a virologist who publicly disagreed with Salk and his killed vaccine, worked on creating a vaccine with live attenuated vaccines. [5] In January 1956, despite Cold War tensions, Mikhail Chumakov, the director of Moscow's Polio Research Institute, along with his wife virologist Marina Voroshilova, and his colleague Anatoli Smorodentsev, traveled to the U.S. in order to study the ...