CASES PER 100,000 POPULATION TETANUS - Reported case rates by age group, United States, 1980 Persons 50 years of age have the highest incidence rate of tetanus, which might be due to inadequate vaccination coverage against tetanus among persons >50 years of age. TRICHINOSIS - Reported average cases per 1,000,000 population by state, United States, 1976-1980 PUERTO RICO VIRGIN ISLANDS The highest incidence rates for trichinosis were observed for Alaska, New Jersey, Rhode Island, and Louisiana. In 1980, 18 common-source outbreaks involving at least 2 cases each, accounted for 58.4% of all cases. The majority For 1980, 27,749 cases of tuberculosis were reported to CDC, an increase of 0.3% from 1979. It is only the second time since 1953, the year in which all states began using standardized formats to report tuberculosis morbidity, that the number of reported cases increased. (This does not include 1975 when the criteria for counting cases changed.) Indochinese refugees accounted for approximately 7.8% of the reported cases for 1980. |