28. If a newborn had trouble breathing and needed to be on oxygen, he is considered ill throughout his body and must wait seven full days after recovery.
29. Bris on the eighth day. Sometimes, an infant needs oxygen or other means of resuscitation right after birth for a few hours, and then his condition stabilizes and he gets off the oxygen. In such a case, seven full days end on the eighth day from birth, yet the bris can only be done after seven full days. For examples, if a baby was born on Sunday at 7 AM and he needed oxygen until 4 PM, his eighth day from birth is the following Sunday, but the bris cannot be performed in the morning as usual, in line with זריזין מקדימין למצוות . They must wait until 4 PM so that seven full days have elapsed since the oxygen was stopped. Many people do not know or pay attention to this; one must be careful about it.
