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An intramuscular injection of the following doses and immunization of one dose is necessary in every year at same volume.
6 to 35 months old: a single dose of 0.5 mL intramuscular injection.
3~8 years old: A single dose of 0.5 mL intramuscular injection.
9 years and older: A single dose of 0.5 mL intramuscular injection.
The children younger than 9 years of age who have not been vaccinated or have not been infected by influenza should be vaccinated two doses at an interval of at least 4 weeks.
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