Is this the 24 hr virus?

Received my first call to pick a sick child up from daycare today. She's the 3rd child send home within a week. Upon pick-up, they provided me with a plastic table cloth & a warning that she will get sick on the way home. (Oh lordy, what was I about to get into.)
She did get sick on the way home, but not to the level I was expecting. After we got home & cleaned up, she played like there was nothing wrong at all. Sean & I just kept looking at each other with a puzzled face. For dinner, she had interest in about 3 carrots, one of her faves, so I knew she wasn't feeling her best. I knew that for sure about an hour later when she said "hurt" & then quickly I become her "porcelain god." Again, after clean-up, you'd think nothing was wrong with her. Wow, we really are blessed with a super happy kid!