Prevalence and Antibiotic Resistance of sp. Isolated from Raw Milk.

Milk, due to its diversity in terms of its nutritional content, is an important element of the human diet, as well as a good medium for the development of bacteria. The genus contains ubiquitous aerobic, rod-shaped, endospore-producing gram-positive bacteria. Representatives of the group and the group contribute to shortening the shelf life of milk and dairy products by degrading milk components and its additives. They also produce a number of heat-stable toxins and can cause a number of ailments, mainly in the digestive system. The aim of this research was to identify sp. strains isolated from raw milk and to determine their antibiotic resistance. Strains isolated from raw milk samples ( = 45) were identified by MALDI-TOF MS. Ninety strains of sp. were identified, for which the antibiotic resistance phenotype was determined. A total of 90 strains of were classified in five groups (the group ( = 35), ( = 7), the group ( = 29), ( = 16), and sp. ( = 3). All isolates were susceptible to chloramphenicol and meropenem. The antibiotic resistance profiles of the tested groups of spp. differed from each other, which is of particular concern in relation to multidrug-resistant representatives of the group resistant to cefotaxime (94.29%), ampicillin (88.57%), rifampicin (80%), and norfloxacin (65.71%). Our study provides data on the prevalence and antibiotic sensitivity of sp. In raw milk, suggesting a potential risk to health and the dairy industry.