Survivors in Zombie City

Is human beings capable of solving threats from the vast universe? The answer is no. In the summer of 2035, a meteorite hit the earth at fifty times the speed of sound, instantly destroying tens of thousands of meters of land around the center of the impact. What's even more frightening is that the meteorite contained a rare ancient virus. The infected person would have ulcers all over their body, lose consciousness, and attack normal humans like zombies. Once bitten, they would be infected with the virus. In order to curb the spread of the virus, international organizations and scientists from various countries have jointly developed virus serum. But how can uninfected people in the city survive?