That lady is only telling half truths likeshe had the puppy a week before she took her to the vet and she took her through 3 different states in that short week. Moving homes causes stress stress causes coccidia all puppies have worms which is why they are on a vaccination and worming schedule until about 16 weeks of age. I did not mix up the puppy is was only the pics I cldnt tell which pup was which in the pics not in person. All vets are different mine starts shots at 6 weeks. Hers is 8 weeks