Isolation and Multiple Drug Resistance Patterns of Salmonella Isolates from Selected Dairy Farms in Hawassa Town, Ethiopia
2020; Volume: 8; Issue: 1 Linguagem: Inglês
10.13188/2325-4645.1000049
ISSN2325-4645
Autores Tópico(s)Salmonella and Campylobacter epidemiology
ResumoA cross-sectional study was conducted from November 2017 to May 2018 on selected dairy farms in Hawassa town to isolate and assess the in-vitro antibiotic biogram of Salmonella from lactating dairy cows, personnel's and equipments at farms.A total of 216 samples were collected from selected dairy farms.All samples were processed bacteriologically following standard procedures outlined by ISO 6579: 2002.The overall prevalence of Salmonella was 12.9% (28/216) of the total samples.Out of total, 64.3% (18/28), 10.7% (3/28) and 25% (7/28) were from lactating cows, personnels', and equipments, respectively.Based on antimicrobial susceptibility testing, all isolates were resistant at least to one or more antimicrobials tested.Accordingly, 96.4% (27/28), 82.1% (23/28) and 75.0%(21/28) isolates showed resistance for oxytetracycline, kanamycin, and nalidixic acid, respectively.Out of all the resistant isolates, 96.4% (27/28) showed multiple antibiotic resistance (resistance to two or more antibiotics) patterns.Multiple antimicrobials resistance was observed in 66.7% (18/27), 7.4% (2/27) and 25.9% (7/27) from lactating cows, personnels', and equipments, respectively.Thus, awareness creation to the public regarding the public health importance of multiple drug-resistant Salmonella species and the consumption of unpasteurized milk and milk products is important.
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