polio history
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how is polio spread
11 Mar 2014 Although polio can cause paralysis and death, the vast majority of people who are In rare cases, poliovirus infection leads to paralytic polio, the most serious form of the disease. Common signs and symptoms include:. Polio has occurred for thousands of years in all parts of the world. Probably the most common type of poliomyelitis is the form least identified by the general The virus is most often spread by the faecal-oral route. There are three serotypes of wild poliovirus type 1, type 2, and type 3 each with a slightly different Three serotypes of poliovirus have been identified—poliovirus type 1 (PV1), type 2 (PV2), and type 3 (PV3)—each with a slightly different capsid protein. All three are extremely virulent and produce the same disease symptoms. PV1 is the most commonly encountered form, and the one most closely associated with paralysis. 10 Oct 2016 From the history of polio to now. Polio is a highly contagious virus that can result in spinal cord and brainstem paralysis. It most commonly affects children under 5 years old. Cases of polio peaked in the United States in the 1952 with 57,623 reported cases. Polio is more common in infants and young children and occurs under conditions Oral-oral transmission by way of an infected person's saliva may account for Type 1 is the type most often isolated from paralytic cases. type 3 less so and type 2 least commonly. Type 1 was most often the cause of epidemics. Infection 20 Apr 2017 Polio, in its most debilitating forms can cause paralysis and death. OPV is created from a weakened form of poliovirus; this version is the vaccine . infection caused by a common type of bacteria known as pneumococcus. Nature's way of saying, "Stay inside and play video games." What tissue type What's the 2nd most common clinical subtype seen in Polio? Abortive infections. 15 Oct 2014 Two types of vaccine protect against polio: oral poliovirus vaccine (OPV) and Most people who get infected with poliovirus (about 72 out of 100) will not and, though less common, through droplets from a sneeze or cough.
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