epidemicity

Epidemicity yellow fever assaults , Houston early phase develops slowly since being located in many muddy swamps and being suffering, be to transport the cotton harbour only.

于地处多泥泞沼泽和行性黄热病袭击，休斯敦早期发展缓慢，仅为运棉港口。

Based on a 8-year surveillance data,a factor analysis theory was used to analyze the 12 risk factors influencing the epidemicity of epidemic cerebrospinal meningitis.

应用因子分析理论，结合随州市8来的脑监测资料，对影响脑行的12个因素进行了研究。