I doubt that. Seems that every 'bug' I've had for the 15 years is one that I caught from one of my kids who toted it home from school. I wonder just how often the desks & lockers in public schools get sanitized. Once a day? Once a month? Once every semester? Ever?
Oh, silly... the desks get sanitized on the last day of school, right before they're stacked up for the summer.
I could always avoid the flu by avoiding parents. Schools and colleges are notorious Petri Dishes.
I had a boss once who had twins in day care. Every cold or flu that was going around, he brought in, every time. Finally I told him if he was sick and came into my office I'd brain him with a chair. He was a walking bioterror weapon.
My daughter’s kindergarten teacher had all of us bring in Clorox wipes, Lysol spray and hand sanitizer. The lady was obsessive about cleaning the classroom. Before they left the room each day, every kid wiped down everything.
Yet, my daughter ended up with 37 days that she was sick.
When she got it, my little one got it and then the little one ended up with a UTI because of a tipped kidney.
I pulled her out of school and both built up some immunity. They are rarely sick and mostly sniffles.
Quarantine is the only way to stop an epidemic.