Laura .... most feed stores sell the same vaccinations as the vets use .... the most important thing is to look to be sure it is a KILLED VIRUS vaccine! Fort Dodge is the brand that most veterinarians use. You can buy the exact same vaccines online, and they will air ship them packed in ice to you. It is cheaper to buy it by the vial and buy some small syringes. I would order in the winter time though, because last summer I ordered and by the time I received them, the ice packs had melted and the bottle was WARM to the touch. I called, and the company said they were "fine" but I was too leary to use them.... so I wasted a vial of vaccine. I would shop at a local Co-Op and just check the things I mentioned at first!