Clinical and Sero-Molecular Characterization of Escherichia Coli with an Emphasis on Hybrid Strain in Healthy and Diarrheic Neonatal Calves in Egypt

The present study was carried out to characterize pathogenic in apparently healthy and diarrheic neonatal calves with special reference to the hybrid strains and evaluate their clinical and hematobiochemical consequences. One hundred and seventy calves (age 1-30 days) were divided into two groups: apparently healthy (n = 70) and diarrheic (n=100). Animals were subjected to thorough clinical, hematobiochemical and bacteriological examinations. Clinically, diarrheic calves showed various degree of diarrhea with the presence of cardinal signs of dehydration in moderate and severe cases. There was a significant increase (p