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First report on the antibiotic resistance profiles and virulence genes of Staphylococcus pseudintermedius colonizing shelter dogs and dog owners in Nigeria
3rd Annual congress on Antibiotics and bacterial infections
MOSES Ikechukwu Benjamin
Department of Pharmaceutical Microbiology and Biotechnology, Faculty of Pharmaceutical Sciences, Nnamdi Azikiwe University, Awka, Nigeria.
The increase in antibiotic-resistant staphylococci among pets and its transfer to humans threaten veterinary medicine
and public health. This study was designed to determine the antibiotic resistance patterns and the prevalence of
virulence genes among S. pseudintermedius obtained from dogs and dog owners in Abakaliki, Nigeria. Exactly 112 swab
samples (perineum, nares, and mouth) were obtained from shelter dogs while nasal swabs of 97 dog owners and 150 nondog
owners were collected. Swab samples were processed and isolates were identified using standard microbiological
procedures. MIC was determined by broth micro-dilution using the sensititre system. Isolates were screened for sec, siet, exi,
and lukD genes by PCR. A total of 99 S. pseudintermedius isolates [86 (76.8 %) from dogs and 13 (13.4 %) from dog owners]
were obtained, out of which 52 (52.5 %) were identified as methicillin-resistant S. pseudintermedius (MRSP) strains as they
harboured mecA genes. No S. pseudintermedius isolate was recovered from non-dog owners. Isolates were highly resistant
to penicillin (100 %) and ampicillin (94.2 %). Equal resistance frequency (51.2 %) was each observed for fluoroquinolones,
clindamycin, trimethoprim/sulfamethoxazole, and erythromycin. Isolates also exhibited resistance to gentamycin (46.5 %),
chloramphenicol (23.1 %), tetracycline (19.8 %), and tigecycline (8.1 %). Isolates harboured sec (73.7 %), exi (2 %), siet
(62.6 %), and lukD (55.6 %) virulence genes. S. pseudintermedius isolates, including MRSP strains which harboured mecA
genes in this study were multi-drug resistant and notably more resistant than those reported in literature.
Biography
Moses Ikechukwu Benjamin completed his in in the Department of Pharmaceutical Microbiology and Biotechnology, Faculty of Pharmaceutical Sciences, Nnamdi Azikiwe University, Awka, Nigeria on the 25th of November, 2019. Presently, he is a Lecturer in the Department of Applied Microbiology, Faculty of Sciences, Ebonyi State University, Nigeria. He has published more than 35 research articles in reputable peer-reviewed journals.
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