[Discussion on the elimination of measles based on the 45-year-incidence data in Inner Mongolia].

Measles incidence data collected since 1950 in Inner Mongolia is analyzed in this paper. The following characteristics have been noticed after measles vaccine was widely used: (1) the incidence and the mortality of measles kept decreasing, (2) The epidemic still occasionally appeared at low incidence level; (3) the proportion of cases in older children increased; (4) the peak month of the disease occurrence postponed; (5) the differences of incidence among districts depending on the implementation of vaccine and immunization. Since the goal of poliomyolitis eradication is given priority to and should be achieved, measles eradication program should not be overemphasized.