Diagnostic Value of Metagenomic Next-Generation Sequencing for Pneumonia in Immunocompromised Patients

Figure 2

Distribution of sample types in CTs and mNGS. CTs were divided into culture and nonculture group. In the culture group, a total of 103 samples were collected from 43 bronchoalveolar lavage fluid, 28 sputum, 20 peripheral blood, 7 bronchial washing fluids, 3 bronchial secretions, 1 tissue, and 1 pleural effusion. In the nonculture group, a total of 117 samples were included: 49 antigen testing and serology, 24 bronchoalveolar lavage fluid, 21 bronchial brushing fluid, 13 sputum, 6 tissue, 3 bronchial washing fluid, and 1 bronchial secretion. A mNGS test was collected from 46 bronchoalveolar lavage fluid, 4 peripheral blood, 1 sputum, 1 bronchial washing fluid, and 1 tissue. CTs: comprehensive conventional pathogen tests.