The End of the World: Is the Whole World Infected by an Ancient Virus?

An ancient virus ravages all living things. The end of mankind begins from this day. Everything was planned in advance, whether it was the time of the outbreak or the disappearance of the army. And Chen Qiang, who just obtained the survival system, Now you need to make a decision: Waiting for the virus to turn you directly into a zombie? Or should he just cut off his hand and gamble on the slim chance of survival?