MENINGOCOCCAL INFECTIONS (Total) - Reported case rates by year, United States, 1920-1980 CASES PER 100,000 POPULATION For 1980, 2,840 cases of meningococcal infection were reported, representing a rate similar to that observed in the preceding several years. The last major epidemic of meningococcal disease in this country occurred in 1943. Agespecific incidence rates for cases reported to CDC in 1980 showed that the peak incidence rate occurred in infants <1 year of age. MENINGOCOCCAL INFECTIONS (Total) - Reported cases by state and by month, United States, 1980 MENINGOCOCCAL INFECTIONS (Total) - Reported cases per 100,000 population by state, United States, 1980 Attack rates of reported cases of meningococcal infection, by state, demonstrate a continuum of rates from 0.0 to 3.75 cases per 100,000 population. The apparent higher rates for a few select states may be due to reporting artifacts or to differences in actual incidence rates of disease. |