In this study Arlie Manship and colleagues in the USA compared the clinical features of equine coronavirus (ECoV) infection with enteric salmonellosis to establish a disease signature to increase clinical suspicion of ECoV infection in adult horses. Forty-three horses >1 year of age with results of CBC, serum biochemistry, and faecal diagnostic testing for ECoV and Salmonella spp. were identified from a review of medical records at the North Carolina State University Equine and Farm Animal Veterinary Center. Horses were divided into three groups based on faecal diagnostic test results: ECoVpositive, Salmonella-positive, or unknown diagnosis (UNK). Time of year presented, clinical signs, CBC, and serum biochemistry test results were recorded. Data were analysed by 1-way analysis of variance, Kruskal-Wallis test, or Fisher's exact test with significance set at P<0.05. The most common presenting complaints were fever and colic and were similar across groups. Horses with ECoV had significantly decreased neutrophil counts when compared to those with no diagnosis but were not different from horses with Salmonella. Horses with Salmonella had significantly lower mean leukocyte counts compared to those with UNK. No significant differences were found among groups for any other examined variable. The results of this study show that equine coronavirus and Salmonella infections share clinical features, suggesting both diseases should be differential diagnoses for horses with fever and enteric clinical signs. Epiglottic entrapment This retrospective study by Alexandra Curtiss and colleagues in the USA aimed to evaluate the racing performance of horses treated surgically for epiglottic entrapment as yearlings compared to their maternal half-siblings.
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