More than that,the vaccin adopts a kind of dosage form by special process,which could overcome the destruction from gastric acidity or pepsin,thereby render the vaccin more effective and stabler.

• 其次，它采用特殊工艺剂型，克服了胃酸、胃蛋白酶对疫苗的破坏作用，提高了疫苗的有效性和稳定性。