Enterotoxigenic Escherichia coli(ETEC)is one of major pathogens which cause young stock diarrhea . The adhesive function of fimbrial adhesins is the primary condition of ETEC disease.
The enterotoxin gene and fimbrial gene are major reason for the pathogenic character of ETEC. The new method is found in preventing from diarrhea, which is enterotoxin genetic engineering vaccine.