But what abt prechewed food
In the case of breast milk.
I understand but its their immune system is weak, n I read that it can happen to infants
Come what may, for all your what if scenarios, in the case mentioned by you, there is no risk.
But what if she has bleeding gums
Just answered the same above.
But what about the chewing of the food and then giving it to her? And she is just one year old
No risk even if they had food which had her saliva in it. Need not worry.