polio
Poliomyelitis (Poliomyelitis, Polio) (miniculous paralysis, from Japanese) Also translated acute gray myelitis, poliomyelitis. Is caused by poliovirus, can infect human disease. The virus is usually transmitted through the nose and mouth, and infected with the spinal cord of the gray matter. A few days can cause numbness, resulting in disability, severe cases can cause death. The condition is usually a child under the age of five is infected, there is now polio vaccine prevention. In 1954, the scientist Jonas Solk invented the injection of vaccines; in 1955, the American Polish virologist Albert Shabin to attenuated live virus to produce a polio oral vaccine (OPV ) And is widely used. However, the oral sugar pills contain live viruses, a very low proportion of children (according to statistics about 75 thousandth) may be due to taking sugar pills but infected with the virus and lead to serious adverse reactions, so the World Health Organization has asked the world to gradually use the injection Inoculated polio vaccine (IPV) replaces oral polio attenuated live vaccine (OPV) to achieve the goal of global eradication of poliomyelitis in 2018. About 10% of patients infected with polio will cause the virus to invade the nervous system, resulting in sequelae of polio. ...