You can’t treat anything for crypto, period. Giardia might be susceptible to metronidazole or something like fenbendazole but again, very hard to treat in any species. If your dogs or kids came down with severe diarrhea of unknown etiology it might have come from your birds or a puddle in the backyard or something rotten in the garbage or a dead mouse or the neighbors dogs or the petting zoo or the hamster or other kids at daycare…tracking down where something came from is a tall order, bugs are everywhere, basic hygiene and your immune system can keep most stuff at bay but occasionally everybody gets a gut upset at some point, the bugs are in the environment and even in the guts of most animals but they are at such a low level they don’t cause issues, then your balance gets thrown off and suddenly you are sick. I’m bouncing back from food poisoning at the moment but no idea where it came from, but I spent years climbing into hutches with scouring dairy calves (talk about crypto!) and never got sick once, go figure. If you want to get rid of your birds, just do it, don’t go looking for an excuse or a scapegoat or think you can clear Protozoa from the gut of anything, if you find a way, let me know, you’ll make millions!
