Children’s bacterial infection and viral infection according to the different parts of the infection and the degree of different clinical manifestations, there are huge differences, the above respiratory tract infection as an example, the difference between the two are briefly discussed, which mainly includes symptoms, auxiliary examination, treatment and other aspects. 1. Symptoms and signs: In terms of symptoms, viral infection can be manifested as fever, clear nasal discharge without purulent secretion; bacterial infection can be manifested as fever, yellowish-purulent nasal discharge with purulent secretion. 2. Auxiliary examination: in general, viral infection blood leukocytes can be elevated or lowered, accompanied by monocytes or lymphocytes increased proportion of inflammatory indicators will not have obvious changes. Bacterial infections have elevated white blood cells, accompanied by an increase in the proportion of neutrophils, and inflammatory indicators will also be significantly increased; at the same time, pathogen culture can be carried out to determine whether it is a bacterial infection or a viral infection or other pathogenic infections. 3. Treatment: after viral infection, supportive treatment is usually enough, and when the infection is serious, according to the different viral infections, appropriate antiviral drugs can be applied, including oseltamivir, ganciclovir, etc.; after bacterial infection, sensitive antibiotics can be applied, including penicillin, cephalosporins, etc., to carry out anti-infective treatment. When a child develops an infection, it is important to consult a hospital promptly to determine the cause of the infection and then proceed with treatment. All of the above medications should be used under doctor’s supervision.