We don't have children, which is probably why my ears didn't perk up at first.... if we did, I'd sure consider keeping them home, or maybe staging an old-time block party with families who I personally knew & trusted...
All the little ones haven't been vaccinated, far as I can tell- not for years.
Nukes are too good for vermin who would infect helpless children, or even think about it.
If tampered candy is returned to store shelves, even "families you personally know and trust" won't be of any protection.