Kazan medical journalKazan medical journal0368-48142587-9359Eco-Vector10446110.17816/kazmj104461Research ArticleEpidemiological characteristics of diphtheria morbidity in the Republic of Tatarstan in 1994SavitskayaT. A.info@eco-vector.comMakarovaT. V.info@eco-vector.comTrifonovV. A.info@eco-vector.comState Committee for Sanitary and Epidemiological Surveillance of the Republic of Tatarstan150619967732272280403202204032022Copyright © 1996, Eco-Vector1996<p>Before the introduction of planned vaccination against diphtheria in Tatarstan, the number of diphtheria cases per 100 thousand people was 25.3 in 1920-1929 - 25.3, 1930-1939 - 66.5, 1940-1949 - 75.4, 1950-1959 - 67,2. Planned vaccination, which began in 1955-1956, contributed to a decrease in the number of cases. Over the following decades, the average incidence rate per 100,000 population steadily decreased and was in 1960-1969 - 5.2, 1970-1979 - 0,07. However, in 1982-1985 there was a slight increase in the number of diphtheria cases, so the average morbidity rate for 1980-1989 slightly increased (0.09 per 100 thousand population).</p>Kazan Medical archiveКазанский медицинский архив