CASES PER 100,000 POPULATION RUBELLA (German measles) - Reported case rates by year, United States, 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 In 1980 the reported incidence rate of rubella decreased to its lowest level since rubella became nationally notifiable. This represented a decrease of 67% from 1979, and a decrease of 93% from 1969, the year of rubella vaccine licensure. RUBELLA (German Measles) - Reported cases by state and by month, United States, 1979 New England Mid. Atlantic CASES PER 100,000 POPULATION RUBELLA (German measles) - Reported case rates by age group*, United States, In 1980, the reported age-specific incidence rate of rubella decreased for all age groups compared to 1979, with the decrease seen greatest for the 15-19-year-old age group. This resulted in a dramatic change in the age-specific characteristics. From 1976 through 1979, more than 70% of the reported cases of rubella were ≥15 years of age. In 1980, only 47% of the cases were in this age group. Reflecting this decrease in the incidence rate of rubella in older individuals, the highest age-specific incidence rate was for 0-4 year olds. The proportion of cases with unknown age was 24% for 1980, a decrease from 32% for 1979. 1000 900 800 700 600 500 400 300 200 100 0 SALMONELLA - Reported isolations from humans by week,* United States, 1974-1980 JFMAMJJASONDJFMAMJ JASONDJE MAMJ JASEND JF M A M J J A 50ND JFMAMJJASOND JFMAMJJASOND JFMAMJJA SONDI The marked increase in the number of reported isolates during the warmer months suggests that conditions present during this time of year contribute to the spread of Salmonella. |