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Nasal Colonization with Coagulase-Positive Staphylococci (CPS) and Co-Habitation Aspects of Dogs and Their Owners.
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Apr 28, 2012, 8:36:59 AM4/28/12
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PLoS One. 2012;7(4):e35197. Epub 2012 Apr 18.
Sharing More than Friendship - Nasal Colonization with Coagulase-
Positive Staphylococci (CPS) and Co-Habitation Aspects of Dogs and
Their Owners.
Walther B, Hermes J, Cuny C, Wieler LH, Vincze S, Abou Elnaga Y, Stamm
I, Kopp PA, Kohn B, Witte W, Jansen A, Conraths FJ, Semmler T,
Eckmanns T, Lübke-Becker A.
Source
Institute of Microbiology and Epizootics, Veterinary Faculty, Freie
Universität Berlin, Germany.
Abstract
BACKGROUND:
Since the relationship between dogs and their owners has changed, and
dogs moved from being working dogs to family members in post-
industrial countries, we hypothesized that zoonotic transmission of
opportunistic pathogens like coagulase positive staphylococci (CPS) is
likely between dogs and their owners.
METHODOLOGY/PRINCIPAL FINDINGS:
CPS- nasal carriage, different aspects of human-to-dog relationship as
well as potential interspecies transmission risk factors were
investigated by offering nasal swabs and a questionnaire to dog owners
(108) and their dogs (108) at a dog show in 2009. S. aureus was found
in swabs of 20 (18.5%) humans and two dogs (1.8%), and spa types which
correspond to well known human S. aureus lineages dominated (e.g.
CC45, CC30 and CC22). Multilocus sequence typing (MLST) of the two
canine strains revealed ST72 and ST2065 (single locus variant of
ST34). Fifteen dogs (13.9%) and six owners (5.6%) harboured S.
pseudintermedius, including one mecA-positive human isolate (MRSP).
Pulsed field gel electrophoresis (PFGE) revealed that one dog/owner
pair harboured indistinguishable S. pseudintermedius- isolates of
ST33. Ten (48%) of the 21 S. pseudintermedius-isolates showed
resistance towards more than one antimicrobial class. 88.9% of the dog
owners reported to allow at least one dog into the house, 68.5% allow
the dog(s) to rest on the sofa, 39.8% allow their dogs to come onto
the bed, 93.5% let them lick their hands and 52.8% let them lick their
face. Bivariate analysis of putative risk factors revealed that dog
owners who keep more than two dogs have a significantly higher chance
of being colonized with S. pseudintermedius than those who keep 1-2
dogs (p<0.05).
CONCLUSIONS/RECOMMENDATIONS:
In conclusion, CPS transmission between dog owners and their dogs is
possible. Further investigation regarding interspecies transmission
and the diverse adaptive pathways influencing the epidemiology of CPS
(including MRSA and MRSP) in different hosts is needed.
Sharing More than Friendship - Nasal Colonization with Coagulase-
Positive Staphylococci (CPS) and Co-Habitation Aspects of Dogs and
Their Owners.
Walther B, Hermes J, Cuny C, Wieler LH, Vincze S, Abou Elnaga Y, Stamm
I, Kopp PA, Kohn B, Witte W, Jansen A, Conraths FJ, Semmler T,
Eckmanns T, Lübke-Becker A.
Source
Institute of Microbiology and Epizootics, Veterinary Faculty, Freie
Universität Berlin, Germany.
Abstract
BACKGROUND:
Since the relationship between dogs and their owners has changed, and
dogs moved from being working dogs to family members in post-
industrial countries, we hypothesized that zoonotic transmission of
opportunistic pathogens like coagulase positive staphylococci (CPS) is
likely between dogs and their owners.
METHODOLOGY/PRINCIPAL FINDINGS:
CPS- nasal carriage, different aspects of human-to-dog relationship as
well as potential interspecies transmission risk factors were
investigated by offering nasal swabs and a questionnaire to dog owners
(108) and their dogs (108) at a dog show in 2009. S. aureus was found
in swabs of 20 (18.5%) humans and two dogs (1.8%), and spa types which
correspond to well known human S. aureus lineages dominated (e.g.
CC45, CC30 and CC22). Multilocus sequence typing (MLST) of the two
canine strains revealed ST72 and ST2065 (single locus variant of
ST34). Fifteen dogs (13.9%) and six owners (5.6%) harboured S.
pseudintermedius, including one mecA-positive human isolate (MRSP).
Pulsed field gel electrophoresis (PFGE) revealed that one dog/owner
pair harboured indistinguishable S. pseudintermedius- isolates of
ST33. Ten (48%) of the 21 S. pseudintermedius-isolates showed
resistance towards more than one antimicrobial class. 88.9% of the dog
owners reported to allow at least one dog into the house, 68.5% allow
the dog(s) to rest on the sofa, 39.8% allow their dogs to come onto
the bed, 93.5% let them lick their hands and 52.8% let them lick their
face. Bivariate analysis of putative risk factors revealed that dog
owners who keep more than two dogs have a significantly higher chance
of being colonized with S. pseudintermedius than those who keep 1-2
dogs (p<0.05).
CONCLUSIONS/RECOMMENDATIONS:
In conclusion, CPS transmission between dog owners and their dogs is
possible. Further investigation regarding interspecies transmission
and the diverse adaptive pathways influencing the epidemiology of CPS
(including MRSA and MRSP) in different hosts is needed.
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