Was not a huge leap for Koontz to make being that Wuhan is the only Level 4 biolab in China and perhaps the world's foremost authority on studying bats that can carry virus without being affected. Read The Hot Zone or Cobra Effect if you want a couple great books, one fiction and one non-fiction, about how pandemics start and how the threat of a biological weapon has always existed.
But the Koontz/Wuhan connection isn't a prophesy...it's actually one of the most likely labs in the world to lose containment on L4 viruses and the one the Western world was most concerned about developing virus as a weapon for population control