摘要
本文应用余弦模型对河南省流脑季节性特征进行了分析。结果表明，流脑菌苗接种后，流脑发病率已降至较低水平，流行期明显延长，为１～５月份，病例呈更趋分散状态。但季节性发病高峰无明显变化，仍在３月份，提示目前流脑菌苗接种应在１２月上旬以前完成。
An analysis on the seasonal features of epidemic cerebrospinal meningitis during 1975-1995 by using cosine model was carried out in Henan province.The results showed that after the inoculation group A menigococcal polysaccharid vaccine,the incidence rate of this disease was decreased to a lower level,epidemic period was delayed to January-May,the patients were disperse in the whole county.There was no significant variation of seasonal peak,it was still in March.The authors suggested that it was neccssary to completed the inoculation group A menigococcal polysaccharid vaccine in the first ten days of December in every year.The significance of the Cosine model in the analysis of the difference in epidemic peak period was discussed.
出处
《疾病监测》
CAS
1998年第9期344-347,共4页
Disease Surveillance
关键词
余弦模型
流行性脑膜炎
菌苗
接种
Cosine model Epidemic cerebreospinal meningitis Group A menigocuccal polysaccharid Vaccine
