Interventions and Evaluations Saliva samples will be obtained from participating infants with a mouth swab according to an established protocol. The saliva will then be tested for CMV by qualitative polymerase chain reaction by ARUP Laboratories. Infants who test positive for CMV infection will then be referred for repeat audiology exam to confirm hearing loss and to Pediatric Infectious Diseases for evaluation and treatment if necessary. Parents or guardians of infants who test positive for cCMV will receive counseling on the importance of following up with these specialists. The primary outcomes measured will be cCMV prevalence data and time to referral and intervention.