No viral load was detected in these main tissues on [day five] after the monkey was exposed to the same dose of virus again, so, we think the coronavirus did not survive for a long time in the body. Chuan Qin More Quotes by Chuan Qin More Quotes From Chuan Qin Because of the similar immune response of [nonhuman primates] and human beings, [nonhuman primate] models are better to evaluate vaccines than other animals. Chuan Qin