The FDA is continuing to caution pet owners about potential problems from chicken jerky treats originating from China.  The first warnings were issues in 2007 and 2008 with a drop in the number of cases in 2010, however, more than 350 cases have been reported to the FDA in 2011.  See report on MSNBC

The dogs affected from the treats are showing symptoms of vomiting, diarrhea and lethargy. Some dogs have also exhibited signs related to a decrease in their kidney function by drinking more water and an increase in their urination.

There was not a specific brand of treats cited, but all complaints have been on chicken jerky treats obtained from China.

Most of the dogs that have had problems are the smaller dogs that have eaten the treats within a few weeks before becoming sick. A lot of these dogs consumed the treats as a large part of their diet. Some pets had upset stomachs and some suffered renal failure. Most dogs have recovered with treatment, but there are some unconfirmed cases of a few dogs dying from their illness.

Treats, especially jerky treats should only be fed occasionally and not as a major portion of your pet’s diet. If your pet does experience vomiting or diarrhea, please contact your veterinarian for diagnostics and treatment. Especially with the smaller dogs, they can become quite dehydrated within a short period of time and may need intravenous fluids until their tiny stomachs can tolerate food again. Be sure to mention any treats your dog may have consumed or any change of diet to your veterinarian.
If you suspect a problem stemming from a treat or pet food, you and your veterinarian can report it to http://www.fda.gov/petfoodcomplaints.