Effectiveness analyses may underestimate protection of infants after group C meningococcal immunization.
BACKGROUND: Group C meningococcal conjugate-vaccine effectiveness in the United Kingdom declines from ~90% in the first year to 0% between 1 and 4 years after immunization in infants immunized at 2, 3, and 4 months of age and to 61% in toddlers given a single dose. Confidence intervals are wide, an...
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Formaat: | Conference item |
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2006
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