Adults can be vaccinated against influenza without relevant contraindications, but not if they themselves have contraindications or are allergic to the vaccine.
Influenza vaccination is intended for persons ≥6 months of age who have no relevant contraindications. Adults can also decide whether they need to receive influenza vaccine according to their own situation, for example, when they are immunocompromised and susceptible to influenza, they can choose to receive the vaccine, which can play a preventive role.
However, if an adult is allergic to the components of the vaccine, which can cause an anaphylactic reaction after vaccination, vaccination is not recommended.
If you decide to receive the flu vaccine, you should also know your health condition in advance. For those who have some kind of acute as well as chronic diseases, or have fever or fever, etc., you need to postpone the vaccination and wait until your body has completely recovered to normal before receiving the vaccination.