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AND Lacks evidence of any other etiology Confirmed A clinically consistent case that is laboratory confirmed Infection only Δ A case that demonstrates laboratory evidence of infection, but without any clinical symptoms or signs * Infants with symptoms consistent with CRS who test negative soon after birth should be retested at age one month. Approximately 20 percent of infected infants tested for rubella IgM may not have detectable titers before age one month. • In probable cases, either or both of the eye-related findings (cataracts and congenital glaucoma) count as a single complication. Δ If any compatible signs or symptoms (eg, hearing impairment) are identified later, the case is reclassified as confirmed. Centers for Disease Control and Prevention. Rubella, congenital syndrome 2007 case definition. Available at: www.cdc.gov/ncphi/disss/nndss/casedef/rubellasccurrent.htm. Accessed on March 3, 2010.