usually from parasites in water and it is communicable to humans a friend of mine contracted it on vacation and was devastatingly ill.
Maybe ask your vet about probiotics to encourage a healthy flora in her intestines.
I have also been told the giardia test can produce double negatives. My friends dog tested positive and he spent the $100 for meds and then the other vet at the clinic told him the dog had giardia when he had just finished all the meds and his other dog was 100% clear. it was obviously wrong because he did not get a second dose of treatment and 3 years later the dog still hasn't showed any physical symptoms |