Emergence of respiratory Streptococcus agalactiae isolates in cystic fibrosis patients.

Eickel V, Kahl B, Reinisch B, Dübbers A, Küster P, Brandt C, Spellerberg B

Forschungsartikel (Zeitschrift) | Peer reviewed

Zusammenfassung

Streptococcus agalactiae is a well-known pathogen for neonates and immunocompromized adults. Beyond the neonatal period, S. agalactiae is rarely found in the respiratory tract. During 2002-2008 we noticed S. agalactiae in respiratory secretions of 30/185 (16%) of cystic fibrosis (CF) patients. The median age of these patients was 3-6 years older than the median age CF patients not harboring S. agalactiae. To analyze, if the S. agalactiae isolates from CF patients were clonal, further characterization of the strains was achieved by capsular serotyping, surface protein determination and multilocus sequence typing (MLST). We found a variety of sequence types (ST) among the isolates, which did not substantially differ from the MLST patterns of colonizing strains from Germany. However serotype III, which is often seen in colonizing strains and invasive infections was rare among CF patients. The emergence of S. agalactiae in the respiratory tract of CF patients may represent the adaptation to a novel host environment, supported by the altered surfactant composition in older CF patients.

Details zur Publikation

FachzeitschriftPloS one (PLoS One)
Jahrgang / Bandnr. / Volume4
Ausgabe / Heftnr. / Issue2
StatusVeröffentlicht
Veröffentlichungsjahr2009
Sprache, in der die Publikation verfasst istEnglisch
DOI10.1371/journal.pone.0004650
Link zum Volltexthttp://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0004650;jsessionid=A31A545EC2D0E9189C0A7A6E54876CE1.ambra02
StichwörterFemale; Streptococcus agalactiae; Child; Humans; Male; Adult; Lung; Adolescent; Child Preschool; Microbial Sensitivity Tests; Cystic Fibrosis; Female; Streptococcus agalactiae; Child; Humans; Male; Adult; Lung; Adolescent; Child Preschool; Microbial Sensitivity Tests; Cystic Fibrosis

Autor*innen der Universität Münster

Dübbers, Angelika
Zentrum für Eltern-, Kinder- und Jugendmedizin
Kahl, Barbara
Institut für Medizinische Mikrobiologie