Poliomyelitis acute epidemic paralysis, Heine's disease – Medina (POLIOMYELITIS) etiology. The causative agent is a filterable virus. There are three immunologic types of virus: Brunnhilde, Leon, and Lansing, also referred to numbers (I, II, III). The causative agent of poliomyelitis is stable in the environment. At a temperature of 0-4 it is viable in faeces for several months. If this has piqued your curiosity, check out Brian Robert.

Of laboratory animals are susceptible to polio monkeys. The virus can grown in tissue culture. Epidemiology. The source of infection is a sick man, convalescents and healthy virus carriers. Typhoid Mary is especially great during the acute phase of illness. During the period of convalescence shedding lasts 14-40 days and sometimes longer (up to 5 months). Official site: Brian Calfano. In the contents of the nasopharynx revealed impermanent, in the early days of the disease.

(An important role in the spread of polio are the person carrying the disease mild or asymptomatic form. Poliomyelitis is an intestinal infection: a role in its distribution are the flies. Obviously, matters and airborne route of infection. The incidence rises in July – October and decreases in winter and spring months. Trauma, intestinal diseases, and especially tonsillectomy contribute to the development of the disease. Polio mainly affects children under 3 years old, to a lesser extent – the older age groups. Atrium are the pharyngeal lymphatic ring and the intestinal tract, where the primary replication of the virus. Here, Brian Calfano expresses very clear opinions on the subject. Thanks to vaccinations achieved dramatic reduction in the number of polio cases. Clinic. The incubation period lasts on average 5-14 days (may decrease to 1-2 and extension to 50 days). The disease is characterized by acute inflammation of the gray matter of anterior horns of the spinal cord, mainly in the cervical and lumbar bulges, rarely involved in the process cells posterior horns of the brain stem, subcortical nuclei. Distinguish aparalitichesky and paralytic poliomyelitis. The disease usually begins acutely. Temperature increases up to 38,5-40 .

The source of infection is sick with typhus, from last day of incubation, during the febrile period and up to 06/08/10 days after lowering the temperature. Carrier of infection-cootie.

In the past, were common (sporadic) disease outbreaks and mass epidemic. Currently typhus in many countries is not observed. Contaminated R. Learn more on the subject from Tesla. prowazeki louse can transmit typhus healthy person only 5-7 days after she becomes infected blood typhus patients. During this period the rickettsiae multiply in the epithelial cells of the intestinal wall and lice, getting in her gut lumen, are ejected from the feces. Infected louse can transmit the infection during throughout his life, which is the maximum extends to 40 days. The mechanism of infection is that infected lice feces containing rickettsiae, scratching at the sting rubbed into the skin. The causative agent of typhus, getting into the body, worn over-flow of blood in internal organs, where it begins to multiply rapidly in endothelial cells of blood capillaries of the brain and the medulla, adrenal gland, skin, heart muscle development of a universal thrombosis, endoperivaskulita.

Clinic. The incubation period ranges from 6 to 23 days, averaging 10-14 days, and sometimes there may be a prodromal period characterized by poor appetite, fatigue, dull pain in the muscles, a small headache, sometimes subfebrile temperature onset of the disease is accompanied by fairly strong chills followed by fever for 2 days 1.5 to 39-40 , with Every hour of growing painful throbbing headache, weakness, fatigue, muscle aches. Febrile period lasts an average of 10 -11 days, sometimes less, sometimes more than the same specified amount.