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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.
Polio isn’t typically something most parents worry about — after all, there hasn’t been a case of polio originating in the U.S. since 1979 thanks to vaccines, ...
Post-polio syndrome (PPS, poliomyelitis sequelae) is a group of latent symptoms of poliomyelitis (polio), occurring at about a 25–40% rate (latest data greater than 80%). They 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.
It consists of a main article Poliomyelitis and seven daughter articles that go into further depth: Poliovirus, Polio vaccine, Poliomyelitis eradication, History of poliomyelitis, Post-polio syndrome, Polio Hall of Fame, and List of polio survivors. The opening two paragraphs of the main article provide an excellent summary of the subject.
Polio can cause lifelong paralysis and up to 10% of children who have paralysis from polio die, as the virus affects the muscles that allow them to breathe, the CDC notes.
The vaccine derived from this strain, novel oral polio virus type 2 (nOPV2), was granted emergency licencing in 2021, and subsequently full licensure in December 2023. [75] Genetically stabilsed vaccines targeting poliovirus types 1 and 3 are in development, with the intention that these will eventually completely replace the Sabin vaccines. [76]
Get ready for all of today's NYT 'Connections’ hints and answers for #549 on Wednesday, December 11, 2024. Today's NYT Connections puzzle for Wednesday, December 11, 2024 The New York Times
Acute flaccid paralysis with anterior myelitis, polio-like syndrome [1] Magnetic resonance imaging of the spinal cord in a case of AFM showing cord swelling in (d) which has resolved three weeks later in (e). [2] Specialty: Neurology [3] Symptoms: Weakness, decreased reflexes, trouble swallowing or speaking [3] Complications