C622 Strange Spores Poisonous Plants!

When Wang Xiao said this, Elder Dong and Ren Yingying's facial expression changed dramatically.

They were both doctors with many years of experience in medicine. They knew very well how troublesome the mutation of the virus was.

This meant that the cure for the virus in the past had failed. They had to think of a new way to cure it.

"Wang Xiao