Worm

In dark rock-cleft with guano splats, There dangle many thousand bats. A lowly worm evolves therein And in bat flesh begins thriving. Now man arrives for bats to eat, For hungry poor, some tasty meat. And so our worm transfers to man, Thus species barrier now it span. For little worm this is good news, As further afield then it moves. Now clever worm it gets a ride When in long-haul man it does hide To depart from the Orient And widely spread in Occident, Then many folk start feeling ill, As lowly worm begins to kill. Perhaps a lesson man now learn. Don’t underestimate that worm, for sometimes it will disappear to change its guise and reappear.