Becareful where you buy your shots! Some people don't take care of the shots and keep them at the right temp.! I had a litter about 4 years ago that got it 4 of 9 got it they had shots from TSC and the others had shot from the local feed store those 5 did not get it!
Now I order my shots and I have sent one set of 25 shots back to the maker because they were warm when they were delivered! I doubt a feed store or TSC would send there's back!
Very Good Advice...