الفهرس 
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Abstract
Milk, due to its high nutritive value; is considered an excellent medium for the growth of pathogenic as well as non-pathogenic bacteria. This may lead to milk borne outbreaks caused by different types of bacteria such as Salmonella, Campylobacter and S. aureus.
A total of 150 random samples of marketable milk and some milk products including: soft cheeses (Kareish, Domiati) and ice cream have been collected from different localities in New Valley Governorate. The samples were examined bacteriologically for isolation and identification of Salmonella, Campylobacter and S. aureus.
The results revealed that the overall incidence of Salmonella species was 1.6% of the examined marketable milk samples. The incidence of Salmonella was 3.3% from dairy farm milk samples and could not be detected in soft cheese and ice cream samples.
The incidence of Campylobacter spp. in the total examined marketable milk samples was 3.3% and in marketable milk from dairy farms was 6.6%. In addition, the incidence of Campylobacter spp. in soft cheese (kariesh cheese) samples was 3.3%. while they couldn’t be detected in Domiati cheese samples. Moreover, the incidence of Campylobacter spp. in ice cream samples was 10%.