Background: Salmonella enterica subsp. enterica serovar Dublin (antigenic formula 1,9,12[Vi]:g,p:--) is a serovar of the 0:9 (D1) serogroup. S. Dublin is a serovar adapted to cattle, which is the primary host, but it can also infect and cause disease in different hosts, including humans. In cattle, serovar Dublin causes acute and subclinical disease; symptoms include: fever, diarrhea, abortions, and respiratory signs (especially in calves); in addition, it can cause abortion and systemic disease. S. Dublin is a zoonosis that causes one of the highest rates of systemic disease among all non-typhoidal salmonellosis cases in humans. Recently, the Animal Health Diagnostic Center at Cornell University published an animal health advisory
indicating the increase in the isolation of multi-drug resistant (resistant to most antibiotics) S. Dublin in New York. Among ceftriaxone-resistant Salmonella isolates reported by the National Antimicrobial Resistance Monitoring System (NARMS), S. Dublin represents the 40.8% and 2.9% of isolates from cattle and humans, respectively.
Animal reservoir: This serovar is adapted to cattle, but it can cause disease in other animals as well.
Geographical distribution: Serovar Dublin is globally distributed. In the US S. Dublin is the second most common Salmonella serovar among clinical non-human samples. Dairy associated cases are commonly reported in Europe, but in humans the reports include mostly sporadic cases.
Outbreaks: Numerous outbreaks have occurred in cattle, thus making serovar Dublin an important economic concern in the bovine industry. In addition, an outbreak of S. Dublin was reported in Danish fur farms. However, limited are the reports of outbreaks associated with Salmonella Dublin in humans.
Year |
Location |
Associated source |
Number of cases |
1989 |
England and Wales |
Unpasteurized cows' milk cheese |
42 |
1979 |
Glasgow |
Milk |
700 |
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