Generally, viral infections and bacterial infections can be distinguished by symptoms and laboratory tests. 1. Symptoms: Most patients have no obvious symptoms in the early stage of viral infection, but some other patients will have fever, muscle aches, chills, cough, general weakness, nasal congestion, runny nose, etc. Dehydration, epilepsy, neurological disorganization, loss of consciousness, etc., may occur when the infection is severe. Common symptoms of bacterial infection include fever, nausea and vomiting, diarrhea, cough and headache. 2. Laboratory tests: Usually, when bacterial infected patients go to the doctor for routine blood tests, leukocytes, neutrophils, C-reactive protein and other indicators can be seen to be elevated, while viral infected patients can be seen to have a significant increase in lymphocytes, leukocytes, neutrophils, C-reactive protein is mildly elevated or normal. It is worth noting that viral isolation culture is a reliable method to diagnose viral infection, while bacterial isolation culture is a reliable method to diagnose bacterial infection. Therefore, those who need it can seek medical treatment for isolation culture to diagnose viral infection and bacterial infection. It is recommended that those in need should consult a regular hospital for the test to ensure the accuracy of the test results.