Several reports describe how congenital cytomegalovirus (CMV), an often-unknown virus, can lead to permanent hearing problems in children. One account follows Sarah Percy, who had not heard of CMV before her daughter Camden was diagnosed with profound deafness in her right ear at age three. The reports state that Camden’s hearing loss is attributed to congenital CMV, which can infect a baby during pregnancy. While CMV is common and many infections in infants may not be immediately apparent, these sources say some children develop long-term effects, including hearing loss. The articles focus on raising awareness of the condition and identifying CMV as a cause when children present with hearing impairment. Together, the sources emphasize that congenital CMV can result in deafness and that families may only learn of the virus after diagnosis and hearing testing, underscoring the role of medical evaluation for affected children.