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.
ETEC的肠毒素基因和菌毛蛋白基因对于ETEC的致病性起主要作用，肠毒素基因工程疫苗为预防ETEC引起的腹泻开辟了新的途径。
The invention provides a process for preparing the recombinant BCG vaccine, researches the immunity thereof, and belongs to the field of gene engineering and the field of tuberculosis vaccine.
本发明提供了一种重组卡介苗的制备过程，并研究了其免疫性，属于基因工程领域和结核疫苗领域。
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