The prevalence of penicillin-non-susceptible Streptococcus pneumoniae among children aged < 5 years correlates with the biannual epidemic activity of respiratory syncytial virus

Authors: Mühlemann, K.; Uehlinger, D. E.¹; Büchi, W.²; Gorgievski, M.³; Aebi, C.

Source: Clinical Microbiology & Infection, Volume 12, Number 9, September 2006 , pp. 873-879(7)

Publisher: Wiley-Blackwell

Abstract:

This study investigated whether the epidemiology of penicillin-non-susceptible pneumococci (PNSP) colonising small children correlated with the biannual epidemic activity of respiratory syncytial virus (RSV). Colonisation rates and the prevalence of PNSP among paediatric outpatients aged < 5 years was analysed between January 1998 and September 2003 using an established national surveillance network. Resistance trends were investigated using time-series analysis to assess the correlation with the biannual pattern of RSV infections and national sales of oral paediatric formulations of antibiotics and antibiotic prescriptions to children aged < 5 years for acute respiratory tract infections. PNSP rates exhibited a biannual cycle in phase with the biannual seasonal RSV epidemics (p < 0.05). Resistance rates were higher during the winter seasons of 1998-1999 (20.1%), 2000-2001 (16.0%) and 2002-2003 (19.1%), compared with the winter seasons of 1997-1998 (8.2%), 1999-2000 (11.6%) and 2001-2002 (9.5%). Antibiotic sales and prescriptions showed regular peaks during each winter, with no significant correlation with the biannual pattern of RSV activity and seasonal trends of PNSP. RSV is an important determinant of the spread of PNSP and must be considered in strategies aimed at antimicrobial resistance control.

Keywords: Biannual epidemic; carriage; penicillin-non-susceptibility; respiratory syncytial virus; Streptococcus pneumoniae; surveillance

Document Type: Research article

DOI: http://dx.doi.org/10.1111/j.1469-0691.2006.1472_1.x

Affiliations: 1: Division of Nephrology and Hypertension, University Hospital, Bern 2: GlaxoSmithKline AG, Münchenbuchsee 3: Institute for Infectious Diseases, University of Bern

Publication date: 2006-09-01

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