I'm so sorry to read about all the little furbabies that are sick.
Hope they all feel better soon. It's so stressful when the little ones are sick; I get soooo scared when my girl doesn't feel well.
I've recently been told that there's a kind of bronchial infection that some dogs have picked up from the dog parks. There's also some type of viral thing they're picking up if they drink from puddles in the park after it rains. I was told that dogs who've been given Revolution haven't become sick, but the others have. Heard this from a fellow (in the park Sunday) who's recently adopted a rescue dog and had to fill things out about taking the dog to parks. I haven't found much info other than that, though. Still, it's enough to make me worry!