Polio - Symptoms and causes - Mayo Clinic
2024年6月20日 · Polio is an illness caused by a virus that mainly affects nerves in the spinal cord or brain stem. In its most severe form, polio can lead to a person being unable to move certain limbs, also called paralysis.
How Does Polio Affect The Nervous System? - Lybrate
2020年9月11日 · Poliomyelitis caused by poliovirus is a crippling disease that mostly affects children below the age of three years and adults with autoimmune disorders and special conditions. Although the symptoms are varied, the virus mainly attacks the nervous system to the point where it completely destroys the cells of the spinal cord resulting in paralysis.
Polio - Wikipedia
Two basic patterns of polio infection are described: a minor illness that does not involve the central nervous system (CNS), sometimes called abortive poliomyelitis, and a major illness involving the CNS, which may be paralytic or nonparalytic. [15] Adults are more likely to develop symptoms, including severe symptoms, than children. [1]
Poliomyelitis - World Health Organization (WHO)
2024年10月22日 · Polio is a highly infectious disease caused by a virus. It invades the nervous system and can cause total paralysis in a matter of hours. The virus is transmitted by person-to-person spread mainly through the faecal-oral route or, less frequently, by a common vehicle (for example, contaminated water or food) and multiplies in the intestine.
Polio | Definition, Symptoms, Vaccine, & Facts | Britannica
2024年11月20日 · Polio, acute viral infectious disease of the nervous system that has no known cure but can be prevented by a vaccine. Since the 1960s, thanks to widespread use of polio vaccines, polio has been eliminated from most of the world. Learn about the cause, symptoms, prevention, and history of polio.
Poliomyelitis (polio) - World Health Organization (WHO)
3 天之前 · Poliomyelitis (polio) is a highly infectious viral disease that largely affects children under 5 years of age. The virus is transmitted by person-to-person spread mainly through the faecal-oral route or, less frequently, by a common vehicle (e.g. contaminated water or food) and multiplies in the intestine, from where it can invade the nervous ...
Polio: Types, Causes, & Symptoms - Healthline
2018年9月17日 · Polio (also known as poliomyelitis) is a highly contagious disease caused by a virus that attacks the nervous system. Children younger than 5 years old are more likely to contract the virus...
Chapter 18: Poliomyelitis | Pink Book | CDC - Centers for Disease ...
2024年5月1日 · Spinal polio is most common, and during 1969–1979 accounted for 79% of paralytic cases. It is characterized by asymmetric paralysis that most often involves the legs. Bulbar polio presents with weakness of facial, oropharyngeal, and respiratory muscles innervated by cranial nerves and accounted for 2% of cases during this period.
Polio - Harvard Health
2023年3月24日 · Polio is a highly contagious infection caused by the poliovirus. Most people infected with the virus develop no symptoms from it. However, in a small percentage of infected people, the virus attacks nerve cells in the brain and spinal cord, particularly the nerve cells in the spinal cord that control muscles involved in voluntary movement such ...
Poliomyelitis - StatPearls - NCBI Bookshelf - National Center for ...
2024年10月6日 · Poliomyelitis, or polio, is an infection transmitted via the fecal-oral and oral-oral routes by the poliovirus. Today, polio primarily affects children younger than 5 in countries with poor water, sanitation, and hygiene infrastructure. [1] .
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