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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.
How dangerous is polio? ... Why is polio more common in children than adults? Most cases of polio occur in children under 5 years old. ... an estimated 35,000 people per year were disabled due to ...
Despite eradication in recent years, the polio virus is a deadly illness which wreaked havoc in the UK in the 1950s. Scientists have now discovered polio in several sewage samples collected from ...
Only some infectious diseases leave behind permanent, highly visible, physical manifestation after an acute illness. Two of the most prominent were smallpox and polio—both largely conquered in ...
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.
Type 3 (WPV3) is last known to have caused polio in 2012, and was declared eradicated in 2019. [59] All wild-virus cases since that date have been due to type 1 (WPV1). [60] As of August 2024, Afghanistan and Pakistan are the only two countries where the disease is still classified as endemic.
The polio vaccine has all but obliterated the illness that once killed thousands and paralyzed 15,000 people nationwide every year. Polio is a deadly disease with a vaccine that RFK Jr.’s ...
Human infectious diseases may be characterized by their case fatality rate (CFR), the proportion of people diagnosed with a disease who die from it (cf. mortality rate).It should not be confused with the infection fatality rate (IFR), the estimated proportion of people infected by a disease-causing agent, including asymptomatic and undiagnosed infections, who die from the disease.