The polyvalent meningococcal meningitis vaccine may be administered during pregnancy if the woman is entering an area where the disease is endemic. From the use of this vaccine, mostly in the third trimester of pregnancy, it is concluded that there are no indications for harm of the unborn (Letson 1998). Protecting antibodies have been found to cross the placenta. In breast milk and in the serum of the newborn, significantly higher IgA and IgG levels were found in 157 individuals vaccinated in the third trimester, in comparison with controls (Shahid 2002).
Recommendation. Vaccination, if necessary, is not known to be associated with developmental disorders.
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For many years, scientists have been playing out the ingredients that make breast milk the perfect food for babies. They've discovered to day over 200 close compounds to fight infection, help the immune system mature, aid in digestion, and support brain growth - nature made properties that science simply cannot copy. The important long term benefits of breast feeding include reduced risk of asthma, allergies, obesity, and some forms of childhood cancer. The more that scientists continue to learn, the better breast milk looks.