Streptococcus

Streptococcus is a spherical bacterium (coccus) which on division (fission) chain formed. There are several types of streptococci and group them into three groups: alpha-hemolytic, beta-hemolytic and non-hemolytic-range, based on the action or the effect that the red blood cells (erythrocytes). Secrete toxins that cause infectious diseases such as angina, erysipelas, scarlet fever otitis, and pneumonia, as well as autoinumitaria disease: rheumatic fever.

The amount of toxins released by these bacteria are important in the diagnosis and treatment will lead to disease. Alpha and beta hemolytic streptococcus form of a hemolysin which attack and dissolve the red blood cells, the body responds to this attack called antihemolisina antibodies. The demonstration of the presence in the blood antihemolisina an important diagnostic tool in the recognition of the disease is not proved by other processes. Exotoxin produced by alpha-hemolytic streptococci produces paralysis reddish blood vessels, for example, scarlet fever. In erysipelas, found beta-hemolytic streptococci, which usually has penetrated through a small hole in the skin of the face, spreading to the lymph nodes examined and crannies.

In chronic streptococcal infection, allergic reaction occupies the foreground of the fabric, while the same bacteria that settle on a focus that is often not easy to find, for example, granulomas in the root of the tooth. Natural focal infections persistent toxins into the body and sensitive. Thus, in various organs develop streptococcal lesions do not contain any, but in the end, is because of the action. In a wide circle of streptococcal disease should include glomerulonephritis, arthritis and rheumatic fever.