这个保证不了，但可以采取一些防范措施。对付 covid-19 也是一样的。怕车撞可以不出门，也可以出门严格遵守交通规则，用心走路不分心。防范 covid-19 可以不出门，也可以保持安全的 social distance ，在无法确保安全的 social distance 的环境下使用口罩。
- 主题发起人 sofia
- 发布时间 2020-03-20
100多年前，东北鼠疫面前，当时最著名的西方防疫专家也嘲笑过伍连德自制的口罩，说那个玩意没用。后来他自己感染死了，但东北人带着土制口罩隔绝了鼠疫。更何况这次是呼吸系统疫情。而且短短一个多月中国这么多地区，人口，在人口流动性远比加拿大密集频繁的情况下战胜疫情的经验已经证明了口罩真的管用！（另外一个事实是中国人包括我在内不大习惯勤洗手，中国即使疫情高发的时候也没有到处都是免洗手消毒液）
人身攻击于事无补。
人身攻击于事无补。
Lynn Bufka, a clinical psychologist and senior director for practice, research and policy at the American Psychological Association, suspects that people are clinging to masks for the same reason they knock on wood or avoid walking under ladders. “Even if experts are saying it’s really not going to make a difference, a little [part of] people’s brains is thinking, well, it’s not going to hurt. Maybe it’ll cut my risk just a little bit, so it’s worth it to wear a mask,” she says. In that sense, wearing a mask is a “superstitious behavior”: if someone wore a mask when coronavirus or another viral illness was spreading and did not get sick, they may credit the mask for keeping them safe and keep wearing it.
Seeing people around you wearing masks when you’re not can also heightenanxiety about coronavirus and make it seem like the virus is nearby and spreading, even if it’s not, Bufka says. “It could make you feel like, wait, I’m missing something? Is there some information that others have that I don’t have, whether it’s prevalence in the local community or new information about masks being valuable?” Seeing celebrities post masked selfies on social media—as Gwyneth Paltrow, Bella Hadid and others recently did—also can reinforce the idea that this is a beneficial thing to do. A more influential celebrity post, perhaps, would glorify the simple, unsexy practice of handwashing.
Seeing people around you wearing masks when you’re not can also heightenanxiety about coronavirus and make it seem like the virus is nearby and spreading, even if it’s not, Bufka says. “It could make you feel like, wait, I’m missing something? Is there some information that others have that I don’t have, whether it’s prevalence in the local community or new information about masks being valuable?” Seeing celebrities post masked selfies on social media—as Gwyneth Paltrow, Bella Hadid and others recently did—also can reinforce the idea that this is a beneficial thing to do. A more influential celebrity post, perhaps, would glorify the simple, unsexy practice of handwashing.
最后编辑: 2020-03-22
我认为中国的成功是隔离，而不是口罩。口罩的作用十分有限。只有隔离不了的环境下，口罩才开始起作用。你躲在洒水车的射程之外，永远不需要雨衣。
中国人夸大了口罩的作用。
你听说过有华人去中餐馆就餐被感染的吗？
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