Giardia cysts, which serve as protective coverings enabling the parasite to survive outside a host, can be found worldwide, spanning various regions.
To contract giardiasis, your pup must ingest these cysts by drinking water or eating food that carries the cysts, but they can also catch it from ingesting infected feces directly by eating poop from the ground.
However, you should remember that your pup doesn't have to directly eat poop to catch giardiasis.
Sometimes, only sniffing other dogs' hind ends, or subsequently licking their nose can be enough to contract giardiasis.
Another potential source of infection is contaminated soil and plants.
Dogs that hunt and consume animals infected with the parasite may also contract the disease from such encounters.