Meningococcal booster for those at high risk
ACIP now recommends quadrivalent meningococcal conjugate vaccine (MCV4) for all teens ages 11 to 18 years and for anyone 2 to 55 years of age who is at increased risk for meningococcal disease.16 MCV4 is licensed as a single dose.
Because of the high risk for meningococcal disease among certain groups of people, as well as limited data on duration of protection, ACIP now recommends that individuals previously vaccinated with either MCV4 or meningococcal polysaccharide vaccine (MPSV4) who are at prolonged increased risk be revaccinated with MCV4.
Those who were previously vaccinated at 7 years of age or older should be revaccinated 5 years after their previous meningococcal vaccine; individuals who were previously vaccinated at ages 2 to 6 years should be revaccinated 3 years after their previous meningococcal vaccine.
Individuals at prolonged risk for meningococcal disease are those with complement component deficiencies or anatomic or functional asplenia, microbiologists who routinely work with Neisseria meningitides, and travelers to countries where meningococcal disease is hyperendemic or epidemic.
College freshmen living in dormitories who were previously vaccinated with MCV4 do not need to be revaccinated. However, college freshmen living in dormitories who were vaccinated with MPSV4 ≥5 years previously should be vaccinated with MCV4.
New pneumococcal vaccine with more coverage
A new pneumococcal conjugate vaccine (PCV13) for infants and children will be licensed soon. It will replace the PCV7 vaccine now recommended routinely. ACIP will make recommendations on how to introduce PCV13 into a schedule for infants and children who are in the middle of a PCV7 series, and for catch-up vaccination for children who have completed a PCV7 series.
The new vaccine will provide added protection against an additional 6 types of pneumococcal bacteria, and will replace the older product immediately after licensure. It is unclear what will become of unused supplies of PCV7. Physicians who need to order PCV7 in this interim period before the new vaccine is licensed will be faced with difficult choices. The options include ordering only small quantities or trying to get an advance commitment from the manufacturers to take back any unused vaccine.