Comparative analysis of the frequency of the occurrence of mastitis-causing pathogens and assessing their importance in the pathogenesis of mastitis

Abstract

Mastitis, involves changes in the physical, chemical, and microbiological properties of milk, accompanied by structural alterations in the mammary gland. A total of 300 isolates underwent screening using the NCBI National Database of Antibiotic Resistant Organisms (NDARO) for mastitis as isolation source. Out of the 300 isolates screened, the prevalence of each isolate was documented as follows Klebsiella pneumoniae, Escherichia coli, Staphylococcus aureus, Streptococcus agalactiae, Klebsiella oxytoca, Enterococcus faecalis, Bacillus cereus, Enterobacter cloacae. Notably, there was a high prevalence of beta-lactamase genes, including blaTEM (3), blaSHV (177), blaCTXM (6), blaEC (69), among the coliforms. This data suggests a significant presence of antibiotic resistance genes within the isolated bacterial strains.