Infection state 基本例句 感染状况 Objective: To study the human brucellosis infection state and its epidemic feature in high dangerous crowd of Tangshan.摘要目的：了解唐山市人间布鲁杆菌病简称布病在高危人群中的感染状况及流行病学特征。 The Infection State and Clinical Analysis in HGV庚型肝炎病毒的感染状况及临床分析