[An epidemiological survey of mumps in Hubei Province]

The results of epidemiological survey of mumps in 1987, Hubei province was reported. 450 primary schools, 60 primary high schools and 60 villages of 15 counties were investigated by using cluster sampling method. 5815 cases of mumps occurred in the population of 281348. The morbidity rate in primary school, primary high school and residents were 37.2%, 7.9% and 4.4%, respectively. The age-peak of mumps was 5-8 years old in school and 6-9 years old in residents. Two epidemic peaks occurred in April and Oct. It was showed that there was a mumps outbreak in large area of Hubei in 1987. The epidemic of mumps broke out firstly in a school and then spread among the residents. Pupils at lower grade had higher risk to this disease. The incidence in primary school of mountainous areas was significantly higher than that of flatlands and urban areas. The serological results of mumps HI test of 563 pupils who were 5-18 years old were also reported. Some proposal for mumps control in China were suggested.