It's not terrible, but it does suck. You've used nearly 800 words on nothing but loredumping and narration.
The second paragraph should be where it starts. All the info in the intro paragraph can be worked into the second, in fewer words. We dont have to know everything. All you've said is that a girl finds papers that will turn red, there is a virus, she has to move inland.
Introducing a character and immediately jumping into weird wordy introspection is also not great. The world is ending and you have not shown a sense of urgency.
Rewrite it.