Flu vaccination is generally recommended. Influenza is an acute infectious disease caused by the influenza virus, which can spread rapidly and circulate among susceptible people in crowded places such as schools and offices, and annual influenza vaccination is the most effective means of preventing influenza. Therefore, it is necessary to receive influenza vaccination, which can stimulate the body to produce anti-influenza virus immunity. Among the recommended priority vaccinees are home-bound elderly people aged 60 and above, children aged 6 months to 5 years, chronically ill patients, family members of infants under the age of 6 months, and pregnant women or women preparing to become pregnant during the flu season. Vaccination against influenza can mainly substantially reduce the probability of contracting influenza and reduce the risk of hospitalization due to complications from influenza, but there is no guarantee that you will not get influenza after vaccination.