I'll tell you what, I'm pretty over this seemingly constant cycle of my kids being sick and needing to stay home from school. Too many people in the house all the time make familycalhoon go crazy!
I'm old, young miss seagoon took few days off and I didn't when I was small either. That's not just an anecdote, it's just my experience of what has been noted in proper studies.
BECAUSE schools had fewer students and that meant less spreading of germs.