Article
Emergence of a serotype 1 Streptococcus pneumoniae lineage colonising healthy children in Portugal in the seven-valent conjugate vaccination era.
Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases - 1 Jan 2008
Nunes S, Sá-Leão R, Pereira L C, de Lencastre H
Abstract excerpt
Serotype 1 pneumococci are rarely isolated from carriers, but are an important cause of pneumococcal invasive disease in many regions of the world. This report describes the emergence and expansion of a single serotype 1 lineage (characterised by multilocus sequence type 306) among healthy carriers attending day-care centres in Portugal. The prevalence of serotype 1 strains among all pneumococci increased from 0%...
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