A 13-year survey of pneumococcal nasopharyngeal carriage in children with acute otitis media following PCV7 and PCV13 implementation
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文摘

During 13 years, Sp carriage was assessed annually for patients (>7900) with AOM.

Before PCV7 period, PCV7 serotypes accounted for 45% and now they have disappeared.

ST 19A increased from 9 to 16% before PCV13 implementation and decreased to 1% after.

Predominant serotypes after PCV13 implementation were 15B/C, 11A, 15A, and 35B.

Penicillin non-susceptible Sp decreased from 67% to 33% over 13 years.

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