Description

This study mainly prospectively analyze the clinical data of patients with fever with/without other symptoms admitted to the department of infectious diseases, Xiangya Hospital of Central South University, to analyze the epidemiological characteristics, diagnosis and prognosis of these patients. This is an observational study. All subjects will receive the currently recognized routine test of fever according to their disease and corresponding etiological treatment if needed. The researchers will collect various clinical examination indexes of the subjects in the process of diagnosis and treatment, including but not limited to white blood cells, C-reactive protein, Procalcitonin, ferritin, blood culture, therapeutic drugs, etc. Etiology and prognosis of patients will be recorded. Blood samples, urine and stool samples of all subjects will be taken after enrollment and stored for probably testing in the future. This study has no additional intervention and treatment for subjects. All subjects will sign informed consent.