<human>: My 8-month-old puppy Theo tested positive yesterday for giardia after a morning of bloody diarrhea. He is now on Panacur and probiotics, and his poos are already back to normal and he is acting his normal energetic self. The vet said unless he's having diarrhea, I can walk him as normal and let him interact and play with other dogs. They did say I should clean up his poo extremely well and wipe his bum afterwards. My dog walker also doesn't seem concerned and is continuing to walk him with her other dogs.

But now I'm reading about it online and it sounds like I should be in a panic, disinfecting everything Theo has ever touched and continuing to disinfect every single day until we get two negative fecals back. It even said I should wash my hands every time I touch him even if he isn't dirty or anything. I mean sure I wash my hands before eating or after I touch his bum area, but not if I just reach down to pet him while I'm on my laptop!

I'm just wondering whether the vet is under-reacting to it. They did say it's completely endemic in the dog population here (UK), so he was bound to contract it some time - apparently they get a case every single day. So does this mean it is ok for Theo to play with other dogs? He's also scheduled to do the Good Citizen test this weekend at a dog show, and the vet made it sound fine to go - but now I'm worried Theo will be Patient Zero in a wild outbreak of giardia across the UK. But at the same time, both the vet and internet say giardia can take months to get rid of, so it's not like I can quarantine Theo for months, especially since he's not showing symptoms and is super energetic so needs exercise?

Can you summarize the given text in a few sentences?
<bot>: Dog has giardia, vet said he can play with other dogs if he's showing no symptoms, internet says panic panic panic. What do I do?