title: Risk factors for pneumococcal carriage in day care centers: a retrospective study during a 10-year period.
abstract: In this retrospective epidemiologic study, we present pneumococcal carriage data from 109 Swedish day care centers over a period of 10 years. Aspects of season, age, personnel and group size were studied. We found a significant seasonal variation in pneumococcal carriage. Group size was a significant risk factor for pneumococcal carriage. Pneumococcal carriage was 4.5 % in personnel.
authors.affiliation: From the *Infectious Disease Unit, Department of Clinical Sciences, Skåne University Hospital, Malmö; †Medical Microbiology, Department of Laboratory Medicine, Lund University, Malmö; ‡Department of Infection Control, Laboratory Medicine; and §Regional Office of Communicable Disease Control and Prevention, Region Skåne, Sweden.
authors.forename: Jonas
authors.initials: J
authors.lastname: Ahl
authors.forename: Eva
authors.initials: E
authors.lastname: Melander
authors.forename: Inga
authors.initials: I
authors.lastname: Odenholt
authors.forename: Lisa
authors.initials: L
authors.lastname: Tvetman
authors.forename: Tora
authors.initials: T
authors.lastname: Thörnblad
authors.forename: Kristian
authors.initials: K
authors.lastname: Riesbeck
authors.forename: Håkan
authors.initials: H
authors.lastname: Ringberg
mesh_terms: D002353:Carrier State / Q000453:epidemiology* / Q000382:microbiology*; D002648:Child; D002656:Child Day Care Centers; D002675:Child, Preschool; D016021:Epidemiologic Studies; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D011008:Pneumococcal Infections / Q000453:epidemiology* / Q000382:microbiology*; D015995:Prevalence; D012189:Retrospective Studies; D012307:Risk Factors; D012621:Seasons; D013548:Sweden / Q000453:epidemiology