松花江地区1989～1995年流行性出血热时间分布特征的探讨

Discussion on Time Distribution of Epidemic Hemorrhagic Fever in SonghuaJiang Prefecture 1989—1995

本文用园形分布法探讨１９８９～１９９５年松花江地区流行性出血热时间分布特征。跨年度资料分析证实了其季节性高峰的存在，发病集中时点为１１月２３～２４日。流行前期为８月２５日至１０月９日；高峰期为１０月１０日至次年１月８日；流行后期为次年１月９日至２月２２日，余为间歇期。整个流行期病例占总病例的８９５８％，流行高峰期占７９８４％。这为及时采取防治措施、预防和控制本病提供了科学依据。

The Time distribution of epidemic hemorrhagic fever in Songhuajiang Prefecture during 1989 to 1995 was investigated by using a round distributive method.It was confirmed that there was an epidemic season during August 25 to Feburary 22 next year.Its peak was between Oct 10 to Jan 8 next year.Its epidemic phase was in Jan 9 to Feb 22 next year.The other time was interval phase. 89.58% of the total cases were concentrated in the period of epidemic season.79.84% of the total cases were concentrated in the peak time. The resultsprovided a scientific base for infectious disease prevention and control.