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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.
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.
Furthermore, the attack rate on this group was 1.6%. Two-year-olds had the highest attack rate per 100,000 people at 1.84%. [4] Additionally, the death rate was very high, particularly for the younger age groups. At the height of the epidemic, which was from June 1 to November 1, the death rate from polio in the greater New York City area was ...
The polio vaccine has all but obliterated the illness that once killed thousands and paralyzed 15,000 people nationwide every year. ... which is why it sometimes triggers spinal and respiratory ...
With a single case of paralytic polio detected in Rockland County, New York, and the virus showing up in wastewater samples in two counties in the state, as well as New York City, health officials ...
By the first half of the year they had 713 reported cases and a death rate of 6.6%, and the peak infection months of summer were still ahead. Canada sent a shipment of vaccines to Hungary by a refrigerated plane, and Britain and Sweden sent iron lungs. A few years later, during a polio outbreak in Canada, "masked bandits" stole 75,000 Salk ...
As of 2019, nearly 93% of U.S. children had received three or more doses of the polio vaccine by age 2, according to the CDC. Vaccination rates in Rockland County and Orange County in New York are ...
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 ...