Abnormal Development - Polio Virus
Introduction
Poliomyelitis (polio) is a highly infectious viral disease, affecting only humans of any age, but mainly children under the age of 3 (> 50% cases). There are three types (type 1, type 2, and type 3) of wild poliovirus which can invade the nervous system and can cause total paralysis in several hours. In areas with either poor hygiene or sanitation, infants are infected early in life, acquiring active immunity while still protected by maternal antibodies. Other infants who miss early contact with the virus become susceptible to infection as maternal antibodies fall.
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Cite this page: Hill, M.A. (2026, August 19) Embryology Abnormal Development - Polio Virus. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Abnormal_Development_-_Polio_Virus
- © Dr Mark Hill 2026, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G