Yes, I think they do. At least you’re all building up your immunities! Hang in there, it gets better.
I just have to laugh because Katherine has been in her new toddler classroom at the CDC for all of 3 days, and her new favorite game is "which nostrils do my fingers fit in?" I assume she picked this up at daycare, and I just picture all the kids running around sticking their fingers in each other's noses. I can't wait until she learns to remove her own diaper. Toddlers are gross. Good thing they're (usually) cute!