CDC uvádí i jiná čísla: "The last major epidemic in the United States occurred during 1964-1965, when there was an estimated 12.5 million rubella cases in the United States, resulting in 2,000 cases of encephalitis, 11,250 therapeutic or spontaneous abortions, 2,100 neonatal deaths, and 20,000 infants born with CRS."
http://www.cdc.gov/vaccines/pubs/surv-manual/chpt14-rubella.html