Poliovirus infection, nonparalytic, is a viral infection caused by the poliovirus that does not result in paralysis. It primarily affects unvaccinated individuals, especially children, and was historically widespread but is now rare in most parts of the world due to vaccination.
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Poliovirus has caused epidemics for centuries, with major outbreaks in the early 20th century leading to widespread paralysis and fear. The development of effective vaccines by Jonas Salk (inactivated) and Albert Sabin (oral) in the 1950s revolutionized public health, dramatically reducing its incidence and leading to global eradication efforts.
Poliovirus primarily spreads through the fecal-oral route, typically by ingesting food or water contaminated with the feces of an infected person. It can also spread through close contact with an infected individual, though respiratory droplet transmission is less common.
Contagious Period: Varies by disease
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Our AI-powered surveillance hasn't detected significant Poliovirus infection, nonparalytic activity in the past 30 days.
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Currently, Poliovirus infection, nonparalytic case counts are within baseline expectations globally. However, diseases can emerge rapidly, which is why continuous monitoring is critical.
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Global disease surveillance and guidelines from the World Health Organization
View WHO Resources →Disease information on Virus Watcher is reviewed by our Chief Epidemiologist, a former CDC lead analyst for FluSight forecasting. Outbreak data is aggregated from verified sources including BEACON, ProMED, WHO, CDC, and 50+ national health agencies. This information is for educational purposes and should not replace professional medical advice.
Last reviewed: 2026-06-03
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