Diagnosis and treatment for a case of Legionella longbeachae severe pneumonia and literature review

As a type of , can lead to very rare disease case in China with clinical characteristics, such as no typical early clinical symptoms, strong toxicity, high mortality, and not easy to detect by conventional etiology. A case of severe pneumonia caused by infection was confirmed by bronchoalveolar lavage fluid pathogen metagenomics, and the patient's condition was improved after targeted anti-infection treatment. At present, our understanding in severe pneumonia is limited. The diagnosis and treatment process of the patient with severe pneumonia of is retrospectively analyzed and the relevant literature was reviewed to provide the experience for its future diagnosis and treatment.