In a new TV campaign, Sanofi targets parents stressing that, for effective meningitis prevention, it takes two vaccinations. Encouraging parents to make sure that their high school age children get a second MCV4 dose needed to complete the quadrivalent meningococcal conjugate vaccine.
The CDC recommends adolescents get the first dose at age 11 or 12, plus a second booster dose at age 16. However, some studies have found that only about one-third of 17-year-olds have received a second dose, even though more than 75% received the first one.
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