I found documents about details of the event which took place two days after birth. Reason for hospital admission:
Cyanosis and
Apnea during breastfeeding. They also found a
heart murmur which could not be detected during a second measurement. Cardiology found no deviations. "Probably caused by too much food".
Birth younger brother, reason for admission mother: postpartum fluxus in anamnesis.
Details upon departure of the maternity caregiver: Right eye (of younger brother) looks a bit inflamed. Treatment with sofamicine 3 times 1 drop per day.