Changing trends in β-hemolytic streptococcal bacteremia in Manitoba, Canada:2007-2012

Schwartz, Ilan Steven, Keynan, Yoav, Gilmour, Matthew W., Dufault, Brenden and Lagacé-Wiens, Philippe (2014) Changing trends in β-hemolytic streptococcal bacteremia in Manitoba, Canada:2007-2012. International Journal of Infectious Diseases, 28. pp. 211-213. ISSN 1201-9712

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OBJECTIVES: European surveillance studies have reported an increasing incidence of β-hemolytic group G streptococcal bacteremia, but no studies have evaluated trends in β-hemolytic streptococcal bacteremia in North America. METHODS: We reviewed bacteremic episodes and positive throat swab cultures from two tertiary care centers in Manitoba, Canada, from January 2007 to December 2012. RESULTS: During the study period, 19 864 bacteremic episodes, and 9948 positive throat swabs were identified. There were 1025 (5.16%) bacteremic episodes attributable to β-hemolytic streptococci: 425 (2.03%), 339 (1.71%), 62 (0.31%), and 199 (0.95%) to β-hemolytic groups A, B, C, and G streptococci, respectively. From 2007 to 2012, there were significant increases in the proportion of bacteremia attributable to β-hemolytic streptococci in general (6.32% vs. 4.02%; p<0.0001; linear trend test, p<0.0001), and to groups G (1.49% vs. 0.43%; p<0.0001; linear trend test, p<0.0001) and C (0.58% vs. 0.13%; p=0.0068; linear trend test, p=0.0105) β-hemolytic streptococci in particular. Bacteremia attributable to groups A and B β-hemolytic streptococci and Streptococcus pneumoniae were unchanged. There were no changes in the distribution of β-hemolytic streptococcal groups among throat swabs. CONCLUSIONS: Bacteremia attributable to β-hemolytic groups G and C streptococci increased in Manitoba, Canada. Further study of the factors underlying these changes is required.

Item Type: Article
Uncontrolled Keywords: epidemiology,humans,epidemiology,epidemiology,isolation & purification,isolation & purification
Faculty \ School: Faculty of Medicine and Health Sciences > Norwich Medical School
Depositing User: LivePure Connector
Date Deposited: 28 Aug 2020 00:05
Last Modified: 22 Oct 2022 06:42
DOI: 10.1016/j.ijid.2014.03.1376


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