If someone received meningococcal ACWY vaccine (MenACWY) at age 9 years, will two additional doses of MenACWY be needed?

Yes. Doses of MenACWY given before 10 years of age should not be counted as part of the series. If a child received a dose of MenACWY before age 10 years, they should receive a dose of MenACWY at 11 or 12 years and a booster dose at age 16 years. A dose of MenACWY administered at age 10 may count as the first adolescent dose normally given at 11 or 12.