What Is the Special,often Unexpected Urgency in Treating Infants' Respiratory

What is the special,often unexpected urgency in treating infants' respiratory illnesses promptly?

A) Respiratory illnesses are easily spread to other members of the family and more difficult to treat in older children.
B) Respiratory illnesses may affect the ears,and ear infections may impair hearing and interfere with the development of brain areas that are essential for language development.
C) Early respiratory illnesses are likely to result in asthma.
D) Infant immunizations cannot be given while a child is ill.