Analysis on Epidemiological Characteristics of 1764 Measles Cases in Ningbo City

Objective To analyze measles incidence in Ningbo,so as to know the measles epidemiological characteristics in the city and provide the strategies for measles control.Methods 1 764 measles cases were collected in Ningbo Infectious Diseases Hospital from 2000 to 2005 and epidemiological features were analyzed.Results The results showed that the high incidence period was from March to May.We grouped measles cases by age,75.85% cases from two groups: between 1 to 4 years old and between 20 to 39 years old.The incidence in floating population was higher than that in local people and the incidence in down-town and suburb was higher than that in countryside.Of the 1 764 measles cases,378(21.43 %) cases were vaccinated,873(49.49 %) cases were not and 513(29.08%) cases hadn't clear immunization records.Conclusion It is very important to strengthen management of floating population in providing the strategies for measles control.We should adjust measles vaccination procedure scientifically.We should also conduct supplementary immunization for women in breeding period and floating population.