At one point Thursday, cars lined up for free rabies shots for their pets were backed up on Route 5 and a deputy was dispatched to assist with traffic control.

Sarah Balduf, environmental health director for Genesee County, said it was a larger than normal turnout for the rabies clinic and that cars started lining up at 2:30.

Staff members started processing paperwork and vaccinating pets as soon as they were set up, ahead of the 4 p.m. start time, which helped workers keep up with the stream of cars coming through the fairgrounds.