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. 2019 Aug 23;68(3):1–21. doi: 10.15585/mmwr.rr6803a1

FIGURE.

This figure is a flow chart describing the influenza vaccine dosing algorithm for children aged 6 months through 8 years for the 2019–20 influenza season in the United States. If the child has received 2 or more doses of trivalent or quadrivalent influenza vaccine before July 1, 2019 (doses need not have been given during same or consecutive seasons), the child should receive 1 dose of 2019–20 influenza vaccine. If the child has not received 2 or more doses of trivalent or quadrivalent influenza vaccine before July 1, 2019, or if it is not known whether the child has received vaccine, the child should receive 2 doses of 2019–20 influenza vaccine (administered 4 or more weeks apart). For children aged 8 years who require 2 doses of vaccine, both doses should be administered even if the child turns age 9 years between receipt of dose 1 and dose 2.

Influenza vaccine dosing algorithm for children aged 6 months through 8 years* — Advisory Committee on Immunization Practices, United States, 2019–20 influenza season

*For children aged 8 years who require 2 doses of vaccine, both doses should be administered even if the child turns age 9 years between receipt of dose 1 and dose 2.