Infested: Parasites For Your Game

From publisher blurb:

A Brand New Variant Rule Option For 5th Edition

“There are thousands of ways to die, millions if you’re creative. I would take any of them over that.”
—Kinsey Stafford, Apprentice Field Medic

Adventurers go to great lengths to put themselves where they don’t belong. Traversing far-off mountains, exploring dense jungles, or crossing shifting deserts means risking many dangers - both seen and unseen. And although facing the ravenous beasts and evil hordes that call these wild places home is a terrifying prospect, sometimes the gravest threats these areas contain come in the smallest packages.

This supplement includes:

A variant ruleset for adding parasites into your game.
Parasites to disgust and harass your PCs.