Giardia in cats starts in the intestine but ultimately, it spreads through poop. It could be poop in a litter box that spreads over to another pet (or even a human) or it could be food or water ...

Here are 10 parasites that can infect humans, and everything ... Sea Lions and Seals Are Not Like Cats or Dogs: Attempting to Pet Them Could Put Your Life at Risk Giardia is a microscopic parasite ...

Giardia parasites mimic human cell functions to break apart cells in the gut and feed inside, researchers found. This also allows bacteria already present in the body to join in and feed from the ...