Occurrence and antimicrobial resistance profiles of Campylobacter jejuni, Campylobacter coli, and Campylobacter upsaliensis in beef cattle on cow-calf operations in South Africa

Karama Musafiri, Kambuyi Katembue, Cenci-Goga Beniamino T., Malahlela Mogaugedi, Jonker Annelize, He Cheng, Ombui Jackson, Tshuma Takula, Etter Eric, Kalake Alan. 2020. Occurrence and antimicrobial resistance profiles of Campylobacter jejuni, Campylobacter coli, and Campylobacter upsaliensis in beef cattle on cow-calf operations in South Africa. Foodborne Pathogens and Disease, 17 (7) : pp. 440-446.

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Abstract : This study investigated occurrence and antimicrobial resistance profiles of Campylobacter spp. isolates in beef cattle on five cow–calf operations in South Africa. A total of 537 fecal samples from adult beef cattle (n = 435) and rectal swabs from calves (n = 102) were screened for Campylobacter jejuni, Campylobacter coli, and Campylobacter upsaliensis by culture and polymerase chain reaction. Furthermore, 86 Campylobacter spp. isolates including 46 C. jejuni, 24 C. coli, and 16 C. upsaliensis were tested for antimicrobial resistance against a panel of 9 antimicrobials. Overall, Campylobacter spp. was detected in 29.7% of cattle. Among the 158 Campylobacter spp.-positive cattle, 61.8% carried C. jejuni, 25% carried C. coli, and 10% carried C. upsaliensis. Five animals (3.1%) had mixed infections: three cows carried C. jejuni and C. coli concurrently, one cow had both C. jejuni and C. upsaliensis, and one cow harbored C. coli and C. upsaliensis. Antimicrobial resistance profiling among 86 Campylobacter spp. isolates revealed that 52.3% of the isolates were resistant to one or more antimicrobials. Antimicrobial resistance was observed in 46.7% of C. jejuni isolates, 35.6% of C. coli, and 17.8% of C. upsaliensis. Thirty-six percent of isolates were resistant to clindamycin, 19.7% to nalidixic acid, 18.6% to tetracycline, and 17.4% to erythromycin. Lower resistance rates were recorded for azithromycin (8.1%), florfenicol (3.4%), gentamicin (4.8%), and telithromycin and ciprofloxacin (5.8%). Multidrug resistance (MDR) was observed in 32.5% of isolates. Significantly higher levels of MDR were detected among C. jejuni (36.9%) and C. coli (33.3%) isolates in comparison to C. upsaliensis (18.7%). Two main multiresistance patterns were detected: nalidixic acid/clindamycin (17.8%) and tetracycline/clindamycin (14.2%). To the best of our knowledge, this is the first study which has shown that beef cattle on cow–calf operations in South Africa constitute an important reservoir and a potential source of clinically relevant and antimicrobial resistant Campylobacter spp. strains.

Mots-clés Agrovoc : Campylobacter jejuni, Campylobacter coli, Bovin de boucherie, Vache allaitante, Résistance aux antimicrobiens

Mots-clés géographiques Agrovoc : Afrique du Sud

Mots-clés complémentaires : Campylobacter upsaliensis

Mots-clés libres : Campylobacter spp., Antimicrobial resistance, South Africa, Beef, Cattle

Classification Agris : L73 - Animal diseases
L70 - Veterinary science and hygiene - General aspects

Champ stratégique Cirad : CTS 4 (2019-) - Santé des plantes, des animaux et des écosystèmes

Auteurs et affiliations

  • Karama Musafiri, University of Pretoria (ZAF) - auteur correspondant
  • Kambuyi Katembue, University of Pretoria (ZAF)
  • Cenci-Goga Beniamino T., University of Perugia (ITA)
  • Malahlela Mogaugedi, University of Pretoria (ZAF)
  • Jonker Annelize, University of Pretoria (ZAF)
  • He Cheng, CAU [China Agricultural University] (CHN)
  • Ombui Jackson, University of Nairobi (KEN)
  • Tshuma Takula, University of Pretoria (ZAF)
  • Kalake Alan, Gauteng Department of Agriculture and Rural Development (ZAF)

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