Children bronchopneumonia is by coccus of pneumonic diplococcus, grape, second model streptococcic cause, these bacteria are very sensitive to penicillin, hit penicillin so effective.

• 小儿支气管肺炎是由肺炎双球菌、葡萄球菌、乙型链球菌引起的，这些细菌对青霉素都很敏感，所以打青霉素有效。