Among the various things that Wang Tao exchanged points for, one was the [Virus Immunity] constitution. This constitution allows Wang Tao to be immune to many viruses, including the zombie virus!
[Virus Immunity: Able to be immune to the vast majority of viruses, including the zombie virus]
In today's apocalyptic world, the greatest threat is undoubtedly the zombie virus!
When faced with other threats, there is always a slim chance of survival, but if infected with the zombie virus, whether a strong person or an ordinary person, the result is the same—death! At most, it's a matter of early versus late death.
Although Qu Shilin eventually created the zombie virus serum, that was two years later. Even though this time, with Wang Tao's intervention, the speed of developing the zombie virus serum might be accelerated, it certainly can't be produced in the early days of the apocalypse.
