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Abstract : Milk and cheese contamination with harmful bacteria is more common particularly those made from raw or inadequately pasteurized milk, have been implicated in the transfer of many foodborne diseases to humans. Pathogens enter raw milk from a variety of sources, salmonella is the most prevalent pathogenic bacterium that causes salmonellosis in people and animals. salmonella serovars produce the illness, which can show as anything from mild food poisoning to severe enteric fever. In recent years, extensive research into the antibacterial effects of essential oils and extracts has been conducted, revealing their potency and potential to inhibit the growth of a wide range of hazardous microbes. Fifty (50) samples of raw cow milk and soft white cheese randomly collected from different local market and bulk farm between (February 2021 - May 15, 2022), from the different Area of Baghdad city. Milk and cheese are significant sources of salmonella, particularly for those who prefer raw milk. the prevalence of salmonella was (20% of 50) among different types of samples. We conclude that Myrtus communis essential oil possesses antimicrobial properties against the three tested strains: salmonella typhimurium, salmonella enteritidis and salmonella infantis. Raw milk and soft white cheese act as a wide source of contamination with pathogen, and we consider Myrtus communis oil act as antibacterial action.