genome

Driven by global warming, as their environments shift beneath them, wild animals keep advancing.  Many carry corona viruses, which can evolve into something unorthodox in a week.

If you don't believe in evolution, you should be safe. . . .

I suspect, as the planet warms, we will see many pandemics, each genome different from the last. People in provinces where medicines and food are limited will suffer most; the rich will catch diseases from their servants and die.