NDLI: Genomic analysis reveals the presence of a class D beta-lactamase with broad substrate specificity in animal bite associated Capnocytophaga species

Content Provider	Springer Nature Link
Author	Zangenah, S. Andersson, A. F. Özenci, V. Bergman, P.
Copyright Year	2016
Abstract	Capnocytophga canimorsus and Capnocytophga cynodegmi can be transmitted from cats and dogs to humans, and can cause a wide range of infections including wound infections, sepsis, or endocarditis. We and others recently discovered two new Capnocytophaga species, C. canis and C. stomatis, mainly associated with wound infections. The first-line treatment of animal bite related infections is penicillin, and in case of allergy, doxycycline and trimethoprim/sulfamethoxazole. However, there is a lack of antibiotic susceptibility patterns for animal bite associated Capnocytophaga species. Thus, we set out to study the antibiotic profiles against animal bite associated Capnocytophaga species isolated from wound and blood cultures after cat and dog bites and coupled the findings to whole genome sequencing data. A total of 24 strains were included in the study. Phenotypic analysis of antibiotic resistance was performed with E-tests. The web-based tool ‘Resfinder’ was used to identify resistance genes in the whole genome dataset. Two strains of C. cynodegmi and two strains of the recently discovered C. stomatis were resistant to penicillin (MIC > 24 mg/L) and cephalosporins (MIC > 24 mg/L), and three out of these strains also exhibited resistance to imipenem (MIC = 32 mg/L). Genomic analysis revealed that these strains carried a class D beta-lactamase gene, which has not previously been found in Capnocytophaga spp. A class D beta lactamase with broad substrate specificity was found in animal bite associated Capnocytophaga species, which could have important implications when treating wound infections after cat and dog bites. It also suggests that pet animal bacteria can harbour resistance genes with relevance for human infections.
Starting Page	657
Ending Page	662
Page Count	6
File Format	PDF
ISSN	09349723
Journal	European Journal of Clinical Microbiology & Infectious Diseases
Volume Number	36
Issue Number	4
e-ISSN	14354373
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-12-01
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Medical Microbiology Internal Medicine
Content Type	Text
Resource Type	Article
Subject	Infectious Diseases Microbiology (medical)

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