The best vaccination time of influenza vaccine: June 165438+ 10 to March of the following year is the high incidence season of influenza. Because it usually takes 2 to 4 weeks to produce antibodies with protective level in human body after influenza vaccination, September to 10 is the best time for influenza vaccination every year.

Contraindications and precautions for influenza vaccination:

People who are allergic to any ingredients in the vaccine are forbidden to take the vaccine. Patients with mild or moderate acute diseases with or without fever symptoms are advised to be vaccinated after the symptoms subside.

Vaccination is not recommended for the following people: those who have taken influenza antiviral drugs 48 hours before vaccination with live attenuated influenza vaccine; Children with asthma aged 2-4 years; Low immune function due to drug abuse, HIV infection and other reasons; Need and severe immune dysfunction; People in close contact; Pregnant women and children and adolescents treated with aspirin or salicylic acid are also prohibited from vaccination; Guillain-Barre syndrome occurs within 6 weeks after the last influenza vaccination, so it should be used with caution. Children with asthma, active wheezing or recurrent wheezing attacks should be carefully vaccinated with live attenuated influenza vaccine.

Note: Vaccination of live attenuated influenza vaccine should be at least 4 weeks apart from other live attenuated influenza vaccines, and the observation period should be at least 30 minutes after vaccination.