One hundred of fresh sausage samples were collected from different butchers at Alexandria governorate. The samples were analyzed for detection of some microbial groups (Staphylococcus aureus , Enteropathogenic Escherichia coli, Salmonellae and Yersinia enterocolitica ) .Results showed that , The highest pathogen recovered was 85 Staphylococcus aureus isolates ( 65 isolates were coagulase positive and 20 isolates were coagulase negative) from all examined fresh sausage samples with an incidence of (85%). On the other hand, no Salmonella isolates were recovered from all fresh sausage samples examined among the enteric bacterial groups one isolate of Proteus vulgaris and 9 isolates of Proteus mirabilis with an incidence of (1% )and( 9%) respectively were obtained, Four isolates of Yersinia enterocolitica with a percentage of (4%) . Moreover, recovery of enteropathogenic Escherichia coli revealed that 12 isolates were recovered, with an incidence of (12%) Concerning serological identification of the recovered Enteropathogenic Escherichia coli ,the results revealed presence of the following serotypes 3 strains of O1 , 2 strains of O26 , O44 , O55 , 2 strains of O125 , O127 and 2 isolates were untypable with an incidence of 25% , 16.66% , 8.33% , 8.33%, 16.66% , 8.33% and 16.66% respectively.
Key words: Fresh sausage, Staphylococcus aureus, Enteropathogenic Escherichia coli , Salmonella, and Yersinia enterocolitica.
|
