Kyule, M. PhDJelal, Abdul2022-06-302023-11-302022-06-302023-11-302009-06http://etd.aau.edu.et/handle/123456789/32196A cross-sectional study of Listeria species was conducted on bulk raw milk, farm raw milk and cottage cheese. A total of 400 samples consisting of 100 farm raw milk, 100 bulk raw milk and 200 cottage cheese samples were collected. Out of these samples, 49 (12.25%) were positive for Listeria . The bulk raw milk was the most contaminated with Listeria species with an overall prevalence of 27%. Sixteen samples(16%) of farm raw milk, 6 (3%) of cottage cheese were positive for Listeria.enBulk Raw Milk,Cottage Cheese,Debr Zeit, Farm Raw Milk, Listeria Species, and Prevalen .Thesis