Emerging pneumococcal carriage serotypes in a high-risk population receiving universal 7-valent pneumococcal conjugate vaccine and 23-valent polysaccharide vaccine since 2001.

BMC Infect Dis · 2009 · PMC2736967 · PMID 19650933

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did not reach statistical significanceno p-value reported

At the serotype level, these trends were present for serotype 19A but did not reach statistical significance.

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