Phylogenetic analysis of serotype 19A-sequence type (ST)2331 Streptococcus pneumoniae associated with the Pneumococcal Molecular Epidemiology Network (PMEN)34 clone predominant in Japan after the introduction of the 7-valent pneumococcal conjugate vaccine (PCV7)
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Following the introduction of the 7-valent pneumococcal conjugate vaccine (PCV7), serotype 19A Streptococcus pneumoniae emerged as a major cause of paediatric pneumococcal disease in Japan. Unlike global trends, in which multidrug-resistant serotype 19A-sequen... ...
