支气管肺炎（Bronchopneumonia）.docVIP

支气管肺炎（Bronchopneumonia） 1\ what are the causes of bronchopneumonia? Children with pneumonia in developed countries are mainly caused by viral pathogens, while bacterial pneumonia is the main cause of pneumonia in developing countries. General bronchial pneumonia is caused by bacteria, Haemophilus influenzae and Streptococcus pneumoniae accounted for more than 60% of bacterial pneumonia. Staphylococcus is also an important pathogen. Streptococcus pneumoniae, Escherichia coli, Bacillus pneumoniae and Pseudomonas aeruginosa are rare in infants with pneumonia. Virulence of bacteria is related to the structure of bacteria. Capsule bacteria can resist phagocytosis, and virulence is greater. The same bacteria are classified according to the different components of the capsule. The capsule of different bacteria is different and the virulence is different. Haemophilus influenzae is divided into A-F and six serotypes. Where B is most toxic, is one of the main pathogenic bacteria in children with sepsis, meningitis and pneumonia, capsular polysaccharide to ribose phosphate. Haemophilus influenzae pneumonia caused by Haemophilus influenzae secondary to bronchitis, bronchiolitis or septicemia, more common before the age of 3. The Haemophilus influenzae without capsule is not formed and has little toxicity. It usually only causes upper respiratory tract infection. Beta hemolytic streptococcus in measles or whooping cough in the course as a secondary infection, but does not see more, of which group B streptococcus is a common pathogen of neonatal pneumonia at home and abroad, has not attracted enough attention. Coagulase positive Staphylococcus aureus is also a common pathogen of severe pneumonia in children. Coagulase negative staphylococcus (mainly Staphylococcus epidermidis) in recent years, but because of the more isolated, as opportunistic pathogens, easy pollution during the training, should be combined with clinical judgment is whether the pathogenic bacteria of pneumonia.