摘要：The objective of this study was to determine the prevalence of Listeria species in raw milk, and dairy products.
A total of 110 samples were obtained from randomly selected retail stores and local bazaars located in
Ankara. Using TS EN ISO 11290-1 method, 23 samples were found positive for Listeria spp. The overall
prevalence of Listeria spp. was 20.91%, in which L. innocua was the most commonly recovered species
(6.36%). The remaining isolates were identified as L ivanovii (5.45%), L. monocytogenes (4.55%), and L welshimeri
(4.55%). The L monocytogenes isolates were positive for the presence of hlyA gene. The highest prevalence of
Listeria spp. was found in homemade cheese (9.09%), followed by raw milk (8.19%), and white cheese
(3.64%). L monocytogenes was isolated from raw milk and homemade cheese in this study.
In conclusion, the low hygienic quality dairy products may lead to listeriosis surveillance in Ankara.
