A minority of Escherichia coli (E. coli) strains are capable of causing human illness. E. coli O157: H7 has now been reported from Pakistan. Infection with E. coli O157: H7 may present with a wide range of clinical manifestations. This research work was based on Microbial, Immunological screening and Molecular study of pathogenic bacteria E. coli in meat samples (Beef, Mutton, Quail and Fish), in hawkers foods: dahi bhala, fruit chat, fruit juices and milk shakes. 300 Meat samples, fruit juices and milk shakes were collected from Lahore. 300 Dahi bhala & fruit chat samples were collected from...