AABP executive Director Dr. Fred Gingrich reviews a paper published in The Bovine Practitioner with two of the authors. Joining today are Dr. Greg Habing, professor in the Department of Preventive Medicine at The Ohio State University College of Veterinary Medicine, and Dr. Emily Nogay, clinical assistant professor at The Ohio State University Large Animal Ambulatory Services. 

Salmonella Dublin is a host-adapted and zoonotic pathogen affecting many dairy farms. It can be associated with high morbidity and mortality and is often multi-drug resistant which elevates its importance to dairy farmers and veterinarians. Surveillance and diagnostics are an important aspect of managing diseases in our herds. Nogay reviews available diagnostic tests and the advantages and disadvantages of each one. The ELISA test has a sensitivity of 65%, but is used to screen herds for the disease. The objective of this study was to determine if the four U.S. commercially licensed Salmonella vaccines would result in a positive Salmonella Dublin ELISA test result. 

We walk through the results of the paper and discuss some of the findings, including the impact of the vaccines on the serum ELISA results and some potential reasons for the ELISA results after vaccination. Habing discusses future opportunities for research on this disease, including the need for better diagnostic tests, including a PCR test to screen herds. 

AABP’s peer-reviewed journal, The Bovine Practitioner, publishes original research studies, reviews, case series, and case reports intended to provide clinically relevant research to private practicing veterinarians. It is an open access journal and there are no publication fees for submitting authors. Read more about the journal at this link. 

The effect of Salmonella vaccination on Salmonella Dublin blood enzyme-linked immunosorbent assay results. Bov Pract. 2025;59(2), 53-60. https://doi.org/10.21423/bpj20259266