1994年全国脊髓灰质炎流行状况分析

我国脊髓灰质炎发病数继１９９３年降至历史最低水平后，１９９４年又下降了５３％，且病例呈高度散发，爆发明显减少。１９９４年有病例报告的县数为２２５个，其中有病例爆发的县２个，爆发病例占总病例的４．２％，野病毒分布范围明显缩小，由野毒引起的病例数减少为６例。

Epidemiological Analysis of Poliomylitis Cases in 1994, China

n 1994,the number of reported polio cases was 307 in China. This number was 53%lower than that in 1993, and was the lowest record ever in China. In1994,the distribution of polio cases was highly dispersed and the number of outbreak was reduced obviously.Of 225 counties which reported polio cases in 1994,polio outbreak occured in 2 counties. Cases due to polio outbreak ac-counted for 4.2%of the total cases. The distribution of polio wild virus was narrow but the regional difference still existed.In the southeast,high risk region for polio consisting Guangdong,Hainan,Fujian three provinces,the number of polio cases decreased remarkably in 1994. On the contrary,in the southwest region which,consisting Guangxi,Yunnan,Guizhou,Sichuan four provinces,the number of polio cases increased obviously,accounted for approximately a half of the total number in 1994.During the coming 1 to 2 years,we should emphasis on these regions and provinces where high incidence was noticed in our polio eradication program. Those provinces should include Xinjiang,Fujian,Hubei three provinces that polio wild virus was identified in 1994,and Guangxi,Sichuan,Guizhou,Yunnan in the south west region as well. We should further increase Polio vaccination coverage of children especially floating and unplanned ones through strengthening routine immunization and carring out new national immunization day activity.