Hi! I have a approx. 4-5 week old muscovy duckling who has started sneezing tonight. We have four, but only one is sneezing. Background: Our temperatures have been fluctuating and while they have the heat lamp, I'm sure drafts still happen. They have gone swimming twice so far, once yesterday, which was a sunny day - although the water wasn't warm, and were put back into their brooder with heat lamp after the swim. I don't know if that could have caused it? Should I quarantine the sneezing duckling away from the other ducks? I can't seem to find a definitive answer on the internet on if it's okay that it's sneezing or if it needs to be treated with medicine. I have some Vi-Tal I could give them, but no idea how to dose it for ducks. Any and all suggestions would be appreciated! This is our first attempt at raising ducks and know no one who has done it before, so we're trying to figure it out all on our own. Thank you!!