I also know someone whose infant baby died because of being exposed to someone who was sick.
By 3 months, OK. But the first month or so, I think it’s better for everyone to recover.
Scripture seems to bear that out with the minimum of the 40 day recovery period for a woman having had a baby.
I guess the five of us siblings should be dead now.
Also, my 12 cousins who were raised the same way. We all were in church before we were a week old, experiencing herd immunity.
Everybody’s different; genes are interesting things, and we share the same genes through our moms. Our moms all lived into their 90s.