Short answer · Medically reviewed summary · Last updated: 2026-05-08
Post Polio Syndrome is absolutely not contagious and cannot be transmitted to others through touch, proximity, or any form of contact. It is a non-infectious, progressive neurological condition that occurs as a late effect in survivors of the original poliovirus infection, decades after the initial illness has resolved. Why is Post Polio Syndrome not contagious? Post Polio Syndrome is not caused by an active viral infection.
3 people with Post Polio Syndrome have shared their first-person experience on this question at DiseaseMaps.
Is Post Polio Syndrome contagious?
Is Post Polio Syndrome contagious? Clear, medically reviewed answer on transmission, with sources.
Post Polio Syndrome is absolutely not contagious and cannot be transmitted to others through touch, proximity, or any form of contact. It is a non-infectious, progressive neurological condition that occurs as a late effect in survivors of the original poliovirus infection, decades after the initial illness has resolved.
Why is Post Polio Syndrome not contagious?
Post Polio Syndrome is not caused by an active viral infection. The original poliovirus, which caused the initial paralysis, is no longer present in the bodies of those experiencing these symptoms. Because there is no virus to transmit, there is zero risk of contagion when living with, caring for, or touching someone diagnosed with Post Polio Syndrome. The condition is the result of the body’s long-term response to the initial nerve damage, making it a strictly internal, non-communicable health event.
What causes Post Polio Syndrome?
The exact mechanism of Post Polio Syndrome remains a subject of active research, but it is widely understood as a degenerative process. Years after the initial infection, the surviving motor neurons that compensated for the lost neurons begin to fail. This leads to the following characteristics of Post Polio Syndrome:
- Neuronal Exhaustion: The "overworked" nerve cells that sprouted new fibers to restore function eventually succumb to metabolic exhaustion.
- Chronic Inflammation: Ongoing low-grade inflammation within the central nervous system may contribute to nerve cell degradation.
- Age-Related Decline: The natural aging process, which reduces the number of motor neurons in all humans, accelerates symptoms in those whose neural reserves were already depleted by the poliovirus.
Addressing stigma and misconceptions
Because Post Polio Syndrome is linked to a history of polio—a highly infectious disease—some individuals incorrectly associate the current symptoms with the original contagious virus. This stigma is entirely unfounded. At DiseaseMaps.org, we support a community of 115 people with Post Polio Syndrome who live full, active lives without any risk to their families, friends, or caregivers. Education is the most effective tool for dismantling these misconceptions and ensuring patients receive the social support they deserve.
Next steps
- Consult a neurologist who specializes in neuromuscular disorders to manage Post Polio Syndrome symptoms.
- Join the Post Polio Syndrome community at DiseaseMaps.org to connect with others who understand your experience.
- Focus on energy conservation techniques and physical therapy tailored specifically for Post Polio Syndrome to preserve muscle function.
Medical disclaimer: This information is for educational purposes only and does not replace professional medical advice, diagnosis, or treatment.
References
- NIH National Institute of Neurological Disorders and Stroke (NINDS): Post-Polio Syndrome Information Page.
- NIH Genetic and Rare Diseases (GARD) Information Center: Post-Polio Syndrome.
- Post-Polio Health International (PHI): Resources and clinical guidelines.
- Orphanet: Rare disease database entry for Post-Polio Syndrome.
Posted Jul 20, 2019 by Terry 3000
Posted Jun 14, 2026 by sreames 2500
What is left after this disease (Polio) is a damage in the Central Nervous System (CNS) and a paralysis residual, with the passage of time, gives rise to certain deformities in the Skeletal Muscle System (EMS), known as aftermath.
Both the damage left behind in the CNS, as the own deformities in the EMS have side effects, which are manifested years later, for what are known as Late Effects of Polio.
What are known as Syndrome Postpolio are just the side effects of the original damage in the CNS. Other late effects are problems, basically an orthopedic, side to the aftermath.
In a few words, to suffer the SPP or any other ETP, it is required to have had prior Polio, so that it can be stated categorically that NO, they are not contagious.
Posted Jun 15, 2017 by Sergio Augusto 110
