Posted: 10/23/2013 - An important warning for any pet owners: thousands of dogs and cats have been "mysteriously" getting sick from jerky treats. Almost 600 pets have even died. The FDA says the outbreak is one of the most elusive and mysterious that they have ever seen. Officials know the treats in question come from China, but they haven't narrowed down the brand. Concerned your pet could get sick? Click on the link for a list of symptoms to be on the lookout for.