I don't think that limiting hobby gatherings to two or three participants will solve any problems:
https://home.ourhome2.net/showthread...l=1#post703618
Be sure to scroll on down and read additional posts and responses. Thread now closed by Admins, but there is an important lesson to be learned there.
Time for responsible hobbyists and providers to take hobby vacations for their own personal health and the health of those they love and care about.
This is NOT like an STD, different rules apply and only seeing those you know and trust will not protect anyone.