C1346 Contagious Virus 3

The National Advisor closed the book in his hand. Mu Yunhua saw his movements and did not ask. The National Advisor then said, "The symptoms of fever have already appeared."

"It has already appeared?!" Mu Yunhua thought that it was only the most basic stage, but she did not expect that someone had already reached the stage of fever. Logically speaking, even the influenza had a incubation period