Bacterial pneumonia

Bacterial pneumonia accounts for 80% of all pathogens in adults. Since the era of antibiotics, the prognosis of bacterial pneumonia has improved significantly, but the mortality rate has remained high since the 1960s. At present, some new characteristics of bacterial pneumonia appear, including changes in the pathogenic spectrum, especially the significant increase in the pneumonia G-bacteria ratio in hospitals. Although Streptococcus pneumoniae still dominates the community-acquired pneumonia pathogens, the clinical manifestations tend to be atypical . Bacterial resistance is increasing, and so-called "refractory" pneumonia is common, especially among children, the elderly, and immunosuppressed patients. Improving the level of etiological diagnosis, rationally using antibiotics, avoiding the emergence of drug-resistant bacteria, and improving supportive treatment are urgent issues to be emphasized and resolved in the clinical management of pneumonia.