4/28/2010

Researchers said infants can be immunized with reduced doses of inactivated polio vaccine as an antigen-sparing strategy, but age appears to affect immunogenicity. They said vaccinating infants at 6 to 14 weeks as a priming strategy is not likely to work because the babies are too young, and they advised starting the first dose at 2 months of age with subsequent doses at two-month intervals.

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