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Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus MRSA
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Characterization of a CC1153 PVL-producing community-acquired methicillin-resistant Staphylococcus aureus from a dog

Edet Ekpenyong Udo1, Samar Saed Boswihi2, Tsonyu Ivanov Dimitrov3

  • 1Health Sciences Centre, Kuwait University, Kuwait, Kuwait. edet@hsc.edu.kw.

Journal of Infection in Developing Countries
|April 6, 2019
PubMed

Insights

A rare community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) strain was found in a dog bite wound. This highlights the risk of companion animals transmitting CA-MRSA to humans.

Area of Science:

  • Infectious Diseases
  • Microbiology
  • Veterinary Medicine

Background:

  • Community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) infections are a growing public health concern.
  • Companion animals are increasingly recognized as potential reservoirs for MRSA strains.
  • Zoonotic transmission of CA-MRSA from animals to humans poses a risk for novel infection pathways.

Purpose of the Study:

  • To report the isolation and characterization of a rare CA-MRSA strain from a dog bite wound.
  • To investigate the molecular features of the identified CA-MRSA isolate.
  • To emphasize the potential for companion animal bites to transmit CA-MRSA.

Main Methods:

  • Bacteriological culture and susceptibility testing of wound swab.
  • Molecular characterization including Panton-Valentine leucocidin gene detection.
  • Identification of SCCmec type, coagulase type, spa type, clonal complex, and sequence type.

Main Results:

  • Isolation of a pure, heavy growth MRSA strain (IDH70) from a dog bite wound.
  • IDH70 was susceptible to multiple antibiotics including vancomycin and rifampicin.
  • Molecular typing revealed IDH70 possessed Panton-Valentine leucocidin genes, SCCmec V, coagulase type XIIIa, spa type t903, CC1153, and ST1153.

Conclusions:

  • This case demonstrates the successful isolation of a CA-MRSA strain from a dog bite.
  • The identified strain (ST1153-V-t903) carried virulence factors like Panton-Valentine leucocidin.
  • The findings underscore the importance of considering companion animals as a source of CA-MRSA transmission in the community.
Keywords:
CC1153MLSTMRSAPVL

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