Abstract
Isolation and Multiple Drug Resistance Patterns of Salmonella Isolates from Selected Dairy Farms in Hawassa Town, Ethiopia
Highlights
Milk has been described as a nearly perfect food since it contains the vital nutrients essential to the body, but it is considered as a good medium for many microorganisms [1]
64.3% (18/28), 10.7% (3/28) and 25% (7/28) were isolated from the milk and feces of dairy cows, personnel and equipments, respectively. 19% of Salmonella were isolated from plastic container milk
Out of 216 samples collected from selected dairy farms in Hawassa town, the overall proportion of Salmonella isolated from dairy cows, personnels’ and equipment were 12.9%
Summary
Milk has been described as a nearly perfect food since it contains the vital nutrients essential to the body, but it is considered as a good medium for many microorganisms [1]. Salmonella is comprised of different species and more than 2,600 different serovars of Salmonella have been characterized based on the surface ‘O’ antigen, which is a part of the variable long chain of lipopolysaccharide on the bacterial outer membrane [8]. Out of these 2,600 serovars, nearly 1500 belong to the Salmonella subspecies enterica. This group includes serovars like Salmonella typhimurium and Salmonella enteritidis These serovars are of high importance with respect to their epidemiology as these have developed mechanisms to invade different hosts without any greater resistance. These serovars pose a greater zoonotic potential than their other counterparts [9]
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