Left 4 Tubbies is a universe where events take place in the year 2047. After the "Gift" virus was defeated and the I-2 virus was weakened, White Cross/Grace took over the reign of this world. She decided to change the world for the better, but it turned out that there were even more unknown viruses that were infecting the rest of the Teletubbies. We can also see past monsters from 25 years ago, but they have become more monstrous, and Infectators have developed a very weak immunity to weapons, making them difficult to kill.

That's all that's known about this universe.
And the survivors are: General Mike, Celeste, Adam (recovered), and an Unknown Black Teletubby (Coming soon)