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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.
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.
Vaccine contamination with Simian vacuolating virus 40, known as SV40 occurred in the United States and other countries between 1955 and 1961.. SV40 is a monkey virus that has the potential to cause cancer in animals and humans, although this is considered very unlikely and there have been no known human cases. [1]
Polio is a life-threatening disease caused by the poliovirus. High temperature. Extreme fatigue. Headaches. Vomiting. Neck stiffness. Muscle pain. Symptoms of polio include a high temperature ...
Polio is “shorthand for poliomyelitis, a disease of the central nervous system caused by infection with poliovirus,” Dr. Richard Lloyd, professor of molecular virology and microbiology at ...
An unvaccinated NY man has polio, the first documented case in the U.S. since 2013. Here, doctors explain what polio is, its causes, symptoms, and vaccines.
PVSRIPO, or PVS-RIPO, is the name of a modified polio virus that has recently shown promise for treating cancer. It is the focus of clinical trials being conducted at Duke University. [1] PVS-RIPO consists of a genetically modified nonpathogenic version of the oral poliovirus Sabin type 1.
Before the first vaccine was developed in the 1950s, polio was among the most feared diseases. An explosive 1916 outbreak in New York killed more than 2,000 people and the worst recorded U.S ...