we do spring shots, a 3 way and west nile for all 3 of our boys. In the fall I will do just my older gelding, since that was recommended by the vet, since the older they get the weaker their immune system gets(so he says). And of course our twice a year worming.
I’ve asked about the side effects and it’s pretty rare. Most horses just get a little sore in the injection area, can get a little depressed, and/or lose their appetite for a few days.
My one gelding will get sore in his injection site, but other then that I haven’t had anyone have any side effects and I’ve never seen a horse react to a vaccination either.
"Take the time it takes, so that it takes less time."
"Expect a lot, accept a little, reward often."