The shipping causes the animals stress, plus the added factor of being in a new environment. Thus the animals will have wet-tail because of it. You may have purchased an animal with wet-tail and not realized it. Also, many pet stores sell young animals which are most prone to this infection. Be cautious when buying a hamster.
Young hamsters are very cute, but it is wiser to purchase a somewhat older hamster.
Inquire about the animal s age before you buy, Also ask if any animals the hamster is housed with has contracted wet-tail. Any reputable pet store should be able to tell you this without batting an eyelash. It is highly recommended that you purchase the dri-tail medication and put it in your animal s water bottle for the first couple of weeks or so that you have the animal in your house. Remember that wet-tail is often caused by stress. The hamster will undoubtedly be stressed when it arrives at your house.