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Cytomegalovirus (CMV), a common virus that usually does not make most people sick, may be associated with hearing loss in kids if mom is infected while pregnant according to a new study. In this study, 354 kids who were 4 years of age and up who had been tested for CMV and had hearing loss were examined. Thirty-four contracted CMV from their mothers and it was observed that kids who were CMV-positive at birth had more severe hearing loss than kids who were not and were more likely to have hearing loss in only one ear. Researchers did not have any clear answers as to why contracting CMV in utero may cause hearing problems. CMV is known to cause serious problems in babies if the mother contracts it during pregnancy. The next step will be to investigate how CMV causes hearing loss.
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