Cytomegalovirus infection occurs in many newborns because cytomegalovirus can be transmitted through the placenta during fetal life, or after birth, through the mother’s birth canal or breast milk. If a child is infected with cytomegalovirus, he or she may show the following signs. First, the child may show symptoms of respiratory tract infection, often showing pneumonia, but no fever, more difficult breathing, faster breathing, coughing, nasal congestion, apnea, and increased and thickened respiratory lung texture on chest X-ray. Secondly, the child may also have liver function damage, increased liver enzymes, and jaundice. Then, most importantly, the child may also have hearing impairment. The viral infection causes neurological deafness and affects the child’s growth and development. Therefore, if infected with cytomegalovirus, newborns should be treated with antiviral drugs such as ganciclovir in a timely manner.