PHILADELPHIA -- The search-and-rescue dogs deployed following the Sept. 11, 2001, terrorist attacks have not suffered either immediate or short-term effects from exposure to the disaster sites, researchers from the University of Pennsylvania School of Veterinary Medicine report. The findings, presented in the Sept. 15 issue of the Journal of the American Veterinary Medical Association, should help relieve fears about the after-effects of working at the 9/11 sites.