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*{+}Background:+* _Salmonella enterica_ subsp. _enterica_ serovar Dublin (antigenic formula 1,9,12\[Vi\]:g,p:--) is a serovar of the 0:9 (D{~}1~) 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|https://ahdc.vet.cornell.edu/docs/Salmonella_Dublin_in_Cattle_Health_Alert.pdf] 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. |
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Geographical distribution: serovar 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.
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