The prevalence of and methicillin resistant in milk and dairy products in Riyadh, Saudi Arabia.

In terms of life- menaced contagion, methicillin resistant (MRSA) is known to be one of which and it is truly notable in the contaminated food causing a community health anxiety. However, the occurrence of and MRSA in diverse kinds of dairy products have been tested in this study. Samples from: raw milk (unpasteurized) from horse, goat, camel, and cow origins and unpacked cheese were checked for the recovered strains of such bacterium and MRSA Wholly, MRSA isolates were verified for antimicrobial susceptibility and further characterized by and staphylococcal cassette chromosome mec (SCCmec) typing. Also, Panton-Valentine Leukocidin (), protein A (), and Staphylococcal enterotoxins (SEs) were also tested between all positive MRSA isolates in order to discover the virulence factors. Consequently, 70% of the 100 collected dairy products samples were contaminated by bacteria and 72.9% of them were defined as MRSA. 9.8% of MRSA isolates contained genes with SCCmec type II (80%) as the most common SCCmec type. Moreover, large number of MRSA isolates were identified as multidrug resistance and 28.6% of MRSA positive isolates were also carried vancomycin resistance genes (i.e., ). Too, gene was detected between 9.8% of MRSA isolates but gene was not spotted at all. Additionally, the existing of SEs was variable between MRSA isolates and the most common type was SEH (51%). In general, our results confirmed that raw milk and unpacked cheese in the Kingdom of Saudi Arabia (Riyadh) is a potential vehicle for multidrug resistant MRSA transmission. It is a critical civic health menace and stresses, thus; the need of applying well cleanliness practices is essential.