As poultry organ meat is widely consumed, especially in low- and middle-income countries, there is reason to investigate it as a source of infections in humans. Consequently, the aim of this study was to determine the prevalence, serotypes, virulence factors and antimicrobial resistance of isolated from chicken offal from retail outlets in KwaZulu-Natal, South Africa. Samples ( = 446) were cultured for the detection of using ISO 6579-1:2017. Presumptive were confirmed using matrix-assisted laser desorption ionisation time-of-flight mass spectrometry. isolates were serotyped using the Kauffmann-White-Le Minor scheme and antimicrobial susceptibility was determined by the Kirby-Bauer disk diffusion technique. A conventional PCR was used for the detection of , , and virulence genes. Of the 446 offal samples, 13 tested positive for (2.91%; CI = 1.6-5). The serovars included Enteritidis ( = 3/13), . Mbandaka ( = 1/13), Infantis ( = 3/13), . Heidelberg ( = 5/13) and . Typhimurium ( = 1/13). Antimicrobial resistance against amoxicillin, kanamycin, chloramphenicol and oxytetracycline was found only in . Typhimurium and . Mbandaka. All 13 isolates harboured , , and virulence genes. The results show low prevalence from chicken offal. However, most serovars are known zoonotic pathogens, and multi-drug resistance was observed in some isolates. Consequently, chicken offal products need to be treated with caution to avoid zoonotic infections.
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| http://dx.doi.org/10.3390/pathogens12050641 | DOI Listing |
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