Salmonella Heidelberg (S. Heidelberg) is a bacterium that can cause severe illness in calves and humans. According to the USDA, calves infected with S. Heidelberg may develop diarrhea or die abruptly without any clinical signs and humans infected with S. Heidelberg can develop diarrhea, fever, and abdominal cramps, which typically last from 4 to 7 days. An outbreak of multidrug-resistant (MDR) S. Heidelberg was recognized in Wisconsin dairy calves in 2016. Dr. Donald Sockett, a Veterinary Microbiologist with Wisconsin Veterinary Diagnostic Laboratory joined us on today’s broadcast with an update: