Seminole - thanks - my vitamins have electrolytes so I'll just continue giving them water mixed with that and vitamin b, maybe for winter to hopefully keep them strong and resistant.
Jennifer - you could also add firststatevetsupply to the places you can get vaccine. that's where I got mine. He does currently have issues with the website, apparently certain browsers don't cooperate but I called and got it. I didn't read the whole mareks page you wrote, but it looked nice!
Got it, added!!