Honors Theses and Capstones
Date Completed
Spring 2024
Abstract
From 2016 to 2023 there were 25 cases of Listeria monocytogenes diagnosed at the New Hampshire Veterinary Diagnostic Laboratory. The bacteria were isolated from samples submitted from goats, sheep, cows, gray foxes, and one rooster spread across New Hampshire, Vermont, Maine, and Massachusetts. The vast majority of the tissue samples were brain, with just one uterine culture from a goat, liver cultures from the two gray foxes, and one coelomic culture from the rooster. Bacteria were isolated using specific enrichment media (22/25) and via general bacterial culture (the rooster and both foxes) and speciated first by matrix-assisted laser desorption/ionization - time of flight (MALDI-TOF) mass spectroscopy, and then confirmed via whole genome sequencing. This study reviews the diagnostic methods used, the pathology of listeriosis, and the geospatial distribution of the cases across New England.
First Advisor
Elizabeth Brock
Second Advisor
David Needle
College or School
COLSA
Department or Program
Animal Science
Degree Name
Bachelor of Science
Recommended Citation
Stover, Diana Caroline, "Distribution and Diagnosis of Listeria monocytogenes in New England from 2016-2023" (2024). Honors Theses and Capstones. 844.
https://scholars.unh.edu/honors/844
Included in
Veterinary Infectious Diseases Commons, Veterinary Microbiology and Immunobiology Commons, Veterinary Preventive Medicine, Epidemiology, and Public Health Commons