The differential diagnosis of pneumonia in two patients infected by atypical pathogens
Abstract
The current study presents two patients who lived in a rural family with close contact and suffered from rapidly progressive pneumonia. Chest computed tomography images and lymphocytopenia indicated the possibility of COVID-19 infection, but antibody and nucleic acid tests excluded this possibility. Negative results were obtained from corresponding tests for pneumococcal, adenovirus, fungal and legionella infection. Metagenomics analysis and subsequent antibody tests confirmed mycoplasma pneumonia. After treating with moxifloxacin, both patients recovered well and left the hospital. In terms of complicated infectious disease, consideration of atypical pathogens and medical and epidemiological history were important for differential diagnosis of COVID-19; metagenomics analysis was useful to provide direct references for diagnosis.
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