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本帖最后由 symeteor 于 2020-2-12 15:12 编辑
灰太狼 发表于 2020-2-12 13:46 ![](static/image/common/back.gif)
你猜错了,我直接在WHO和CDC网站上看的,所以建议你去他们网站上自行理解 ...
是么?那你把原文发出来啊。
我找到的是
https://www.who.int/docs/default ... amp;download=trueps
第一段就说了
General Advice
Wearing a medical mask is one of the prevention measures to
limit spread of certain respiratory diseases, including 2019-
nCoV, in affected areas. However, the use of a mask alone
is insufficient to provide the adequate level of protection and
other equally relevant measures should be adopted. If masks
are to be used, this measure must be combined with hand
hygiene and other IPC measures to prevent the human-tohuman
transmission of 2019-nCov. WHO has developed
guidance for home careb and health care settingsc on infection
prevention and control (IPC) strategies for use when infection
with 2019-nCoV is suspected. |
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