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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.
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 ...
Polio was a plague. One day you had a headache and an hour later you were paralyzed. How far the virus crept up your spine determined whether you could walk afterward or even breathe. Parents waited fearfully every summer to see if it would strike. One case turned up and then another. The count began to climb. The city closed. [16]
The polio vaccines prevented 29 million cases of paralytic polio between 1960 and 2021, compared with a counterfactual world with no vaccines, according to researchers’ estimates.
Two vaccines are used throughout the world to combat poliomyelitis.The first, a polio vaccine developed by Jonas Salk, is an inactivated poliovirus vaccine (IPV), consisting of a mixture of three wild, virulent strains of poliovirus, grown in a type of monkey kidney tissue culture (Vero cell line), and made noninfectious by formaldehyde treatment.
The virus infects the throat and intestines, and can cause flu-like symptoms. Paralysis from the polio virus is rare. This year, polio cases have been detected in New York state, London and Jerusalem.
At age five his right arm was withered by a bout of polio. Chandrasekhar used his right hand for bowling which led to his distinctive style. [172] Walt Davis: 1931-2020: Olympic gold medallist in the high jump, and later a basketball player in the NBA. He caught polio, aged nine, and could not walk for three years. [173] W. Harry Davis: 1923–2006
Polio can cause total paralysis, and children under 5 are especially vulnerable. It is transmitted from person to person, mainly through contact with contaminated feces, water or food, as well as ...