Influenza A is contagious and spreads mainly through droplets; after diagnosis, proper isolation should be carried out and attention should be paid to disinfection in order to avoid infecting others. Influenza A is an acute respiratory infectious disease that spreads through droplets, and can also be transmitted directly or indirectly through mucous membranes such as the eyes, nose and mouth, and may be transmitted through contact with items contaminated by the virus. After the diagnosis of influenza A must pay attention to isolation, avoid straight to others coughing, sneezing, etc., on the patient to use the living things should also be sterilized, so as not to lead to the spread of the disease. Influenza A should be treated in a timely manner, if the symptoms continue to be unrelieved, it is recommended to actively seek medical attention and standardized treatment under the guidance of the doctor, so as not to aggravate the condition and jeopardize the patient’s health.