Persistence of Genetic Diversity of Pathogenic Aeromonas hydrophila Isolated from Different Milk Samples

Milk is an excellent culture medium for many kind of microorganisms, being high in moisture, nearly neutral in pH and rich in microbial foods. But contamination of the milk by enteric pathogens, Escherichia coli, Aeromonas hydrophila, Staphylococcus aureus, Yersinia enterocolitica results in gastroenteritis, septicemia and other food borne diseases. The strains of A. hydrophila were obtained from the milk samples which were subjected to the RAPD fingerprinting analysis. A. hydrophila strains tested produced identieal prophiles and revealed the substantial wide genetic deiversity or high heterogenecity among the strains tested.