The prevalence of type 1 diabetes mellitus at follow-up of Swedish infants congenitally infected with cytomegalovirus.

In a Swedish prospective study of congenital cytomegalovirus (CMV) infection, 76 infants were shown to be infected among 16,474 newborns screened by virus isolation in urine. Seventy-three of the excreters were followed up and one developed Type 1 diabetes, as compared to 38 of the 19,483 children born during the same period (p = 0.14, Fisher's one-tailed test). Thus we found no evidence that the combined finding of congenital CMV infection and Type 1 diabetes mellitus was related.