an infected area meaning in Chinese

污染地区

I believe i have been in an infected area during the last thirty days
我相信我在过去三十日内曾在一个疫区。
No inoculations or vaccinations are required unless coming from or passing through an infected area
除非您是经过或从传染区域而至，否则预防和种痘是不需要的。
If successfully marketed the handheld device could be used to look for cases in an infected areas and help contain outbreaks
如果成功的市场化，这种手持设备可以用于在感染区寻找病例并且帮助控制疫情爆发。
If successfully marketed the handheld device could be used to look for cases in an infected areas and help contain outbreaks
如果成功的将其市场化，那么这种手持装置将被用于检测疾病以及组织疾病大规模爆发。