Review Streptococcus Pneumoniae and How to Create Disease In children

Pneumococcus is a diplodocus having polysaccharide capsule, lancet form and gram positive that is seen as single or chain coccus .up to now, we have discovered about 90 serotypes according to their special capsule polysaccharide. Nonspecific defense mechanisms, including the existence of other bacteria in nasopharyngeal may confine pneumococcus proliferation. Epigelouti reflex and epithelium respiratory cilia prevent aspiration secretions and cilia force infective mucus toward throat.in a similar way, natural cilia flow from middle ear and Eustachian tube and from sinus to nasopharyngeal usually prevents infection causing from flora nasopharyngeal.alergy interference, virus infection or stimulus materials (like smoke) with these natural cleaning mechanisms may lead to more colonization and then offers infection causing from these organisms in natural sterile conditions. Diagnosis of pneumococcus infection is proved by separating infection area or blood. Preparing blood cultures in children with pneumonia, meningitis, arteritis, osteomyelitis, pritonioeit,pricadrit or gangrene skin disorders is necessary. Because of public PCV7 vaccination, the amount of hidden bacteremia has considerable decrease, but in the cases that patient with fever is clinically toxic or there is a significant l exocytosis, blood culture should be done. We can recognize pneumococcus in body fluids as gram positive diplococcic mostly like (Lancet form). In this article we