In this task, you're given a review from Amazon's food products. Your task is to generate a short summary of the given review in the input. Note that you don't need to write a complete sentence as a summary.
Q: My Shih Tzu loved these and I have been giving him these duck treats off and on for the past two years with no obvious problem even though they are made in China. Ordinarily I would not give my dog anything made in China, but I could not find any duck treats made in the USA. Well, recently I purchased a large package of these at a Pets Warehouse store. I would wake up and find throw up and diarrhea in the house seemingly every time I gave him a duck treat the day before. I didn't want to believe it. I thought perhaps his water bowl was slimy and cleaned it. All was well. I gave him another duck treat a few days later and he got sick again several hours later. Well, I stopped giving him Dogswell Happy Hips Duck treats and he has been fine since then. So, I don't know if it's just a bad batch of treats or if he somehow became sensitive to these treats or if they are contaminated with something. Not going to take any more chances with this brand.
A:
Not Sure