Salmonella Infection – From the Individual Horse to Outbreak Situations


Contact Hours

3 Hours - RACE Accredited




Internal Medicine – Endocrinology, Haematology, Infectious Diseases, Parasitology & Oncology

Pathology - Clinical & Gross

Practice/Business Management

Toxicology & Pharmacology

Veterinary Partner


Recorded: 18th June 2024


Charlotte Easton-Jones   VetMB, MA, DACVIM, MRCVS - Rossdales Veterinary Surgeons, UK
Paul Morley   BS, DVM, PhD, DACVIM - Texas A&M, USA
Nathan Slovis   DVM, DACVIM, CHT - Hagyard Equine Medical Institute, USA


Josie Traub-Dargatz   MS, BS, DVM, DACVIM - Professor Emeritus, Colorado State University, USA



Salmonella infection in the horse can result in clinical signs ranging from none to fatal colitis and septicemia. The prompt diagnosis of Salmonella infections is important in reducing the risk of pathogen spreading to other animals and people, as well as to direct optimal treatment.  Outbreaks of salmonellosis can occur in both farm and hospital settings, can result in costly mitigation strategies and losses due to impact on the horses, as well as loss of business while resolving the outbreak.   

An international panel of world-renowned internal medicine clinicians and biosecurity experts will be discussing ongoing monitoring to detect Salmonella, which has become common practice in equine hospitals to allow for prompt detection of pathogen spread and thus keep the impact to a minimum.  They will furthermore debate methods for diagnosing and treatment of equine salmonellosis in individual horses, as well as how to investigate and mitigate outbreaks.  Equine practitioners need to be knowledgeable in biosecurity practices that reduce the risk of Salmonella introduction and spread in equine populations, both on farms and in equine hospitals. 

Charlotte is a specialist in Internal Medicine, who joined our Rossdales hospital medicine team team in August 2019.

She graduated from the University of Cambridge Veterinary school in 2012 and commenced an internship in equine medicine and surgery at the Dubai Equine Hospital. Following this she went on to complete a year working in equine private practice in Australia, after which she undertook a fellowship in internal medicine at Hagyard Equine Medical Institute in Kentucky, USA.

On completion of her fellowship, she moved to California to complete a 3-year residency in large animal internal medicine at the University of Davis, California and was awarded ACVIM diplomate status in 2018. She subsequently remained at UC Davis as a staff veterinarian in equine medicine and field service prior to joining Rossdales. She became an RCVS recognised Specialist in Equine Internal Medicine in 2021.

Charlotte is interested in all areas of medicine but particularly enjoys neonatal medicine, and investigating respiratory, gastrointestinal and neurological diseases.

Dr. Josie Traub-Dargatz received her DVM from University of Illinois in 1977 and her Master’s Degree from Washington State University in 1982. Dr. Traub-Dargatz is a diplomate of the ACVIM. She has been a faculty member at the Colorado State University College of Veterinary Medicine and Biomedical Sciences in the Department of Clinical Sciences since 1983 and is now Professor Emeritus at CSU. Dr. Traub-Dargatz has provided USDA APHIS VS Center for Epidemiology and Animal Health with equine subject matter expertise through an annually renewed agreement. At CEAH, she has lead several equine projects including the National Animal Health Monitoring System Equine ‘98 and Equine 2005 and Equine 2015 studies. Dr. Traub-Dargatz was involved with an epidemiologic investigation of the multi-state Equine Herpesvirus Myeloencephalopathy (EHM) outbreak.

Dr. Nathan Slovis is the Director of the McGee Center and a Member of the Practice. He is a native of Annapolis, Maryland. He received his Bachelor of Science from Radford University, Doctor of Veterinary Medicine from Purdue University, interned at Arizona Equine Center and completed his residency in Internal Medicine at the University of California, Davis.

Dr. Slovis has published over 50 manuscripts in both national and international peer reviewed veterinary journals. He is a frequent speaker at many national and international veterinary conferences. He is the Editor of both the Atlas of Equine Endoscopy and The Atlas of Diseases/Disorders of the Foal both distributed by Elsevier. He has also authored numerous book chapters related to Equine Neonatology, Equine Neurology, Hyperbaric medicine, and infectious diseases. He implemented the current Infectious Disease and Equine Emergency Response Programs at Hagyard and holds the position of Infectious Disease Officer and Equine Emergency Response Co-Director. He is also a Certified Hyperbaric Technologist and a Member of the Veterinary Infectious Disease Society.

Dr. Morley is an epidemiologist and veterinary internal medicine specialist that studies infectious diseases affecting animals and people. Major emphasis for his professional activities includes using analytical epidemiology to improve our understanding and control of diseases in animals and people, investigating the ecology of pathogens and antimicrobial resistance determinants in animals and food production systems, and using infection control and biosecurity to manage health risks that are important in veterinary medicine, agriculture, and public health. Most recently he has used metagenomic methods to investigate the effects of agriculture production practices on antimicrobial resistance and microbial ecology as these affect human, animal, and ecosystem health. In 2019, he was appointed the Director of Research for VERO - the Veterinary Education, Research & Outreach Program - in the College of Veterinary Medicine and Biomedical Sciences at Texas A&M University. In this role, he supports the growth of research programs for all VERO faculty, supervises and provides oversight for research staff and laboratories, and promotes research exposure programs for veterinary and undergraduate students. Previously, Dr. Morley served for 20 years as Professor of Epidemiology and the Director of Infection Control at Colorado State University's Veterinary Teaching Hospital. He is a recognized authority on infection control in animal populations and has consulted on infection control and biosecurity issues at veterinary hospitals, veterinary colleges, and animal production facilities around the world.

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