In this situation where evidence is still being collected, to see what works best and on an effective sustainable basis, it was considered prudent to provide options for selecting PPE.
In most cases, there was no evidence to show that any one of the options recommended is superior to other options available for healthcare worker safety.
Further work is needed to gather scientific experience and data from the field in systematic studies, in order to understand why some health workers are infected in the current outbreak and to increase effective clinical care.
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世卫组织承诺在这些问题上与国际伙伴开展合作，以建立起这类证据基础。
WHO is committed to working with international partners on these issues to build this evidence base.
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世卫组织媒体联络人：
WHOmediacontacts
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纳米比亚：待产家园保护新生儿和母亲
Namibia: Maternity waiting homes protect newborns and mothers
Two years ago, under shade trees in a field adjacent to the Okongo Hospital located in the Ohangwena Region of northern Namibia, 20 to 30 tents housed pregnant women waiting to give birth.
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纳米比亚辛巴族妇女往往得穿越长达100公里的路途去卫生设施分娩 世卫组织
Women of the Himba tribe often have to travel up to 100km to reach health facilities to give birth.
Many were here because poor roads, lack of transportation and distances of up to 100 kilometres made it difficult for rural pregnant women to be sure they could reach Okongo Hospital in time to give birth.