During the experiment, the reaction of the guinea pigs in the test group and the reaction grade were not greater than that of the negative control group, and the reaction grade of the negative control group was less than 1.
During the trial, the reaction and reaction level of the guinea pigs in the test group were not greater than those of the negative control group, and the reaction level of the negative control group was less than 1.
During the experiment, the reaction and reaction grade of challenge site in the experimental group were not greater than those in the negative control group, and the reaction grade in the negative control group was less than 1.<br>