A repeated cross‐sectional study of the epidemiology of Campylobacter and antimicrobial resistant Enterobacteriaceae in free‐living Canada geese in Guelph, Ontario, Canada

From May through October 2016, we conducted a repeated cross‐sectional study examining the effects of temporal, spatial, flock and demographic factors (i.e. juvenile vs. adult) on the prevalence of Campylobacter and antimicrobial resistant Enterobacteriaceae among 344 fresh faecal samples collected...

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Bibliographic Details
Published in:Zoonoses and public health 2019-02, Vol.66 (1), p.60-72
Main Authors: Vogt, Nadine A., Pearl, David L., Taboada, Eduardo N., Reid‐Smith, Richard J., Mulvey, Michael R., Janecko, Nicol, Mutschall, Steven K., Jardine, Claire M.
Format: Article
Language:English
Subjects:
Antiinfectives and antibacterials
Antimicrobial agents
antimicrobial resistance
Birds
Campylobacter
Canada geese
Chromosomes
Coefficients
Colistin
Correlation coefficients
Cross-sectional studies
Demographics
DNA fingerprinting
E coli
Enterobacteriaceae
Epidemiology
Escherichia coli
Fingerprinting
Genes
Identification
Nesting
Regression analysis
Regression models
Resistance mechanisms
Salmonella
Statistical analysis
Statistical methods
Waterfowl
Wildfowl
zoonoses
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Summary:From May through October 2016, we conducted a repeated cross‐sectional study examining the effects of temporal, spatial, flock and demographic factors (i.e. juvenile vs. adult) on the prevalence of Campylobacter and antimicrobial resistant Enterobacteriaceae among 344 fresh faecal samples collected from Canada geese (Branta canadensis) from four locations where birds nested in Guelph, Ontario, Canada. The overall prevalence of Campylobacter among all fresh faecal samples was 9.3% and was greatest in the fall when these birds became more mobile following the nesting season. Based on 40 gene comparative genomic fingerprinting (CGF40), the increase in prevalence noted in the fall was matched by an increase in the number of unique CGF40 subtypes identified. Resistance to colistin was detected most commonly, in 6% of Escherichia coli isolates, and was highest in the late summer months. All colistin‐resistant isolates were negative for the mcr‐1 to mcr‐5 genes; a chromosomal resistance mechanism (PmrB) was identified in all of these isolates. The prevalence of samples with E. coli exhibiting multi‐class resistance or extended spectrum beta‐lactamase was low (i.e.
ISSN:1863-1959
1863-2378
DOI:10.1111/zph.12529