The country of Yemen is experiencing a huge coastal outbreak of the evil screw worm
Screw worm females go after bare flesh, laying 250-300 eggs in a host. When you feel that itch, whatever you do, don’t scratch it. The reason why they’re called screw worms is that the maggots will only burrow deeper, causing tissue damage and even death.
Once hatched, the maggots feed off the live flesh and fall down to the ground, where they pupate. The pupae reach adulthood 7 days later. They can then mate and lay over 4,000 eggs. They can also fly 125 miles, bringing their offspring and the plague inland.