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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 U.N. agency estimates that 1 in 200 polio cases results in permanent paralysis, usually of the legs. Among children who are paralyzed, up to 10% die when their breathing muscles are paralyzed.
Most infections are asymptomatic; a small number cause a minor illness that is indistinguishable from many other viral illnesses; less than 1% result in acute flaccid paralysis. This article lists people who had the paralytic form of polio. The extent of paralysis varies from part of a limb to quadriplegia and respiratory failure.
Post-polio syndrome (PPS, poliomyelitis sequelae) is a group of latent symptoms of poliomyelitis (polio), occurring in more than 80% of polio infections. The symptoms are caused by the damaging effects of the viral infection on the nervous system and typically occur 15 to 30 years after an initial acute paralytic attack.
Aug. 13—As improbable as it initially sounded last month, polio just might be making a resurgence across the U.S. and the world. To understand what that means emotionally, as well as clinically ...
There is also a condition called "post-polio syndrome" in which children who seem to fully recover from polio initially can develop neurologic complications, such as muscle weakness or paralysis ...
Polio-like syndrome is a general description of a group of symptoms which mimic polio, including rarely permanent paralysis. Various triggers have been found, including some viruses from the same virus group as polio: enterovirus 68, enterovirus 71, and coxsackievirus A7. [1] [2] These are suspected in many cases of acute flaccid myelitis.
In December 1958, while in Kenya, Cavendish became ill with polio. Because he was paralysed from the neck down, a Nairobi doctor put him on a mechanical respirator that Cavendish needed to breathe, making him a "responaut". Cavendish flew back to England. [1] [4] He was initially given only three months, and then one year, to live. [1]