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Vaccinated Moms Pass on Less Natural Immunity to Their Babies

Wednesday, 12 November 2008 17:35
Babies of mothers who were vaccinated against measles are more susceptible to the disease than babies of mothers who did not receive the measles vaccination, according to an article in the journal Pediatrics.

The study looked at 128 unvaccinated infants, aged 15 months. All the children had been exposed to measles between 1990 and 1992. Infants whose mothers were born after the onset of the measles vaccination program (1963) were 21% more likely to develop measles, compared with children of mothers who did not receive the measles vaccine. These results indicate that unvaccinated mothers pass on a higher level of natural immunity to their infants, compared with vaccinated mothers. The study's authors note that their findings may partially explain the rise in measles cases during recent year.

Papania M, Baughman AL, Lee S, Cheek JE et. al.   Increased susceptibility to measles in infants in the United States   Pediatrics 1999 (Nov);   104 (5):   e59