Influenza is a highly contagious disease, in order to prevent the disease from spreading to family members, you need to pay attention to the following aspects of protection, including vaccination, avoid close contact, wear a mask, pay attention to personal hygiene and physical conditioning. 1. Vaccination: Pay attention to regular influenza vaccination to enhance the body’s immunity to the influenza virus, which can prevent infection. 2. Avoid close contact: avoiding close contact with family members after infection is a very important measure to prevent infection. 3. Wear a mask: daily exchanges can pay attention to wear a good mask to isolate the droplet transmission. 4. Pay attention to personal hygiene: pay attention to wash hands, pay attention to indoor ventilation and disinfection, to further prevent the spread of the virus. 5. Physical conditioning: Family members who are not infected should pay attention to strengthening physical exercise, nutrition and physical fitness to help prevent infection. Symptoms such as dry throat, sore throat, runny nose, sneezing, etc., need to consult a doctor in time for examination and standardized treatment after diagnosis of the disease through the examination, to avoid causing widespread spread of the disease.