Search results
Results from the WOW.Com Content Network
The critical nerves affected are the phrenic nerve (which drives the diaphragm to inflate the lungs) and those that drive the muscles needed for swallowing. By destroying these nerves, this form of polio affects breathing, making it difficult or impossible for the patient to breathe without the support of a ventilator. It can lead to paralysis ...
English: The poliovirus affects the motor neurons of the anterior horn cells, or the ventral (front) grey matter section in the spinal column, which control movement of the trunk and limb muscles including the intercostal muscles.
Poliovirus is, however, strictly a human pathogen, and does not naturally infect any other species (although chimpanzees and Old World monkeys can be experimentally infected). [40] The CD155 gene appears to have been subject to positive selection. [41] The protein has several domains of which domain D1 contains the polio virus binding site.
For roughly 80 years, she has coped with the aftermath of a polio infection, including the late effects of polio, called post-polio syndrome. She now needs a wheelchair or mobility scooter to get ...
Between 2% and 10% of cases of paralytic polio are fatal, since the virus can destroy the nerves that control breathing. How does polio spread?
In extreme cases polio can cause paralysis, usually in the legs, although movement typically comes back within a few weeks or months. However, it can be life-threatening if it paralyses the ...
Polioencephalitis is a viral infection of the brain, causing inflammation within the grey matter of the brain stem. [1] The virus has an affinity for neuronal cell bodies and has been found to affect mostly the midbrain, pons, medulla and cerebellum of most infected patients.
The virus targets the nervous system, which is why it sometimes triggers spinal and respiratory paralysis—and death. Polio primarily infects children under 5 and has done so around the globe for ...