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Salmonella is a common and bothersome disease organism in livestock production. But the species Salmonella Dublin is of particular concern.
Cattle are the host species for S. Dublin, which is highly contagious and difficult to treat. On dairy farms, it is most likely to cause severe clinical disease in calves. It also is classified as a zoonotic disease, meaning it can be transferred from animals to humans through consumption of raw milk and undercooked meat (and accidentally ingested faeces and saliva) from infected animals.
Michigan State University Veterinary and Extension educators Angel Abuelo and Faith Cullens recently published a new bulletin on Salmonella Dublin in dairy calves. They noted that this particular strain of Salmonella has typically been thought of as a problem primarily on dairies in the western United States, but it is gaining a foothold in the Midwest and Northeast. For example, from 2015 to 2019, S. Dublin represented 20.8% of all Salmonella species isolates in bovine samples at Michigan State’s veterinary diagnostic laboratory.
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