Features of the immunity of the newborn and its protection
Surely, your mother also told you that contact with a newborn child should be limited. In the first months after birth, one should not acquaint him with his friends and comrades, take them with him. The baby should be protected from sick relatives, and you must protect your health.
About such unspoken rules they tell us for a reason. The newborn has an unformed immunity, which sometimes is not able to effectively deal with the virus. The baby is born completely sterile. And its mucous membranes and skin are so thin that they cannot protect a child from the penetration of bacteria into the body.