Will Falconer, DVM Moderator
Hi Ellen,
Is this flu trying to make a come back? Odd. I expect it'll be significantly less pathogenic this round, if that's the case. Immunity would be quite established from the earlier visit it made.
Phos 30C is a remedy. Nothing like a supplement that has physical phosphorus in it. You'll find it where ever homeopathic remedies are sold, including Natural Grocer, Whole Foods, Central Mkt, probably even several HEB's.
But, I'd keep an eye on the news to get a sense of whether dogs are really falling sick. I'll take a peak soon and see what it sounds like.
All the best.