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Coronavirus is in the air – there’s too much focus on surfaces

136 点作者 tony101超过 4 年前

21 条评论

hanklazard超过 4 年前
Anecdotally, as someone who works in a clinic where we test for COVID-19 much of the day (and have multiple positive patient tests per day), I can tell you that this editorial certainly seems correct. Even with our caution with PPE, I’m certain that we would have had a major outbreak among staff over the past year if this thing was transmitting efficiently via fomite—it’s just too difficult to use perfect form 100% of the time when dawning and doffing PPE or to not absentmindedly touch your face, etc.
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wdr1超过 4 年前
It still puzzles me that the WHO gets a free pass for loudly asserting as <i>fact</i> that COVID-19 is NOT airborne.<p><a href="https:&#x2F;&#x2F;www.facebook.com&#x2F;WHO&#x2F;posts&#x2F;fact-covid-19-is-not-airborne-the-coronavirus-is-mainly-transmitted-through-drop&#x2F;3019704278074935&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.facebook.com&#x2F;WHO&#x2F;posts&#x2F;fact-covid-19-is-not-airb...</a>
jacobkg超过 4 年前
Serious Question: I have been super paranoid about surfaces for the past year. Disinfecting groceries, quarantining packages, washing hands after touching the mail or opening takeout, etc. This is pretty draining. Should my takeaway be that all of these precautions are unnecessary?
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nlh超过 4 年前
I predict we’re going to look back at ourselves in a few years and find a few things particularly egregious, much as we look back at “smoking is good for your health!” ads from the 1950s:<p>1. Our early guidance that masks don’t help (because we needed to save the real masks for healthcare workers); and<p>2. Our collective obsession around Mar-Apr 2020 with surface disinfecting. The shortage on Clorox wipes, the obsessive cleaning of hands and packages and groceries. The wiping down of airplane seats. Hand sanitizer everywhere.<p>In the end we’re going to realize it was all about close proximity airborne transmission.
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gxqoz超过 4 年前
One thing I&#x27;m curious about is whether all this extra &quot;deep cleaning&quot; is going to have other negative health consequences. i.e. from increased indoor concentrations of the chemicals used to do the cleaning.
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elchief超过 4 年前
everyone on &#x2F;r&#x2F;china_flu and &#x2F;r&#x2F;wuhan_flu has known this since late 2019<p>IIRC the intial evidence was COVID transmission between apartments in Hong Kong via the ventilation system
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cameldrv超过 4 年前
I haven&#x27;t seen a single case study that conclusively demonstrates that fomite transmission occurs at all.<p>There have been a few cases from New Zealand that have been attributed to fomites, but then when you go look at it, it&#x27;s &quot;they were infected by touching the same elevator button.&quot; It&#x27;s certainly curious that fomite transmission happens in a very small enclosed space with relatively little air circulation.<p>What I&#x27;ve never seen is a case such as &quot;they were infected by picking up a package dropped off outside their door&quot;, or &quot;they were infected by using the same playground equipment a few minutes later.&quot; All of the cases have some element of people sharing the same air.
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GizmoSwan超过 4 年前
I recall reading a thread by healthcare professionals, expert in viral diseases during the onset, not sure where exactly. They were basically saying that the virus can only linger on surfaces for max 3 days. Knowing that fact stopped some of my paranoia about packages.<p>Articles that I read indicated that a simple cloth reduced transmission by infected person by about 50%. Humble fiber dense cotton cleaning cloth, by 70%. Multiple layers were even more effective.<p>My research indicated that salt would disintegrate the virus. I made my own masks and spread very fine salt made in coffee grinder on them and my gloves to improve the effectiveness.<p>So far so good.
duxup超过 4 年前
I saw videos of some countries driving trucks doing a sort of fogging and spraying of whole outdoor areas. Not unlike in the article here.<p>It seemed like a strange practice to combat a virus to me but when I raised the question I was told various things that I found pretty unconvincing.<p>I&#x27;m glad to see some actual work identifying risks is out there now.<p>I suspect surfaces, like other practices are focused on, because we can easily deal with them. Anyone can disinfect a surface. The air, not as easy unfortunately.
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dataflow超过 4 年前
This has been on the CDC website for quite a while now:<p>&quot;Currently there is no evidence that people can get COVID-19 by <i>eating or handling food</i>.&quot;<p><a href="https:&#x2F;&#x2F;www.cdc.gov&#x2F;coronavirus&#x2F;2019-ncov&#x2F;daily-life-coping&#x2F;essential-goods-services.html" rel="nofollow">https:&#x2F;&#x2F;www.cdc.gov&#x2F;coronavirus&#x2F;2019-ncov&#x2F;daily-life-coping&#x2F;...</a>
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adventured超过 4 年前
That&#x27;s because it makes people feel good to think that there is something they can do to clean away Covid by following a normal cleaning routine regarding surfaces, something people understand well. It reduces the sense of helplessness for the masses and that&#x27;s also why it won&#x27;t be going away as a routine when it comes to Covid.<p>It&#x27;s basically sanitation theater.
flukus超过 4 年前
This seems to be especially true with the UK variant, just today Australia had another transmission in hotel quarantine between people that shared the same floor and only opened the door to get food.<p>&gt; The woman&#x27;s husband, in her 70s, joined her in quarantine on January 16 and she decided to stay in the hotel with him for his 14-day quarantine period. During that time, a family of five arrived in Melbourne from Nigeria on January 20, and were placed on the same floor. The family tested positive on January 24, then the woman in the room opposite tested positive on January 28. Her partner has returned negative tests during his stay in the hotel - <a href="https:&#x2F;&#x2F;www.abc.net.au&#x2F;news&#x2F;2021-02-03&#x2F;victoria-investigating-possible-coronavirus-spread-in-quarantine&#x2F;13117828" rel="nofollow">https:&#x2F;&#x2F;www.abc.net.au&#x2F;news&#x2F;2021-02-03&#x2F;victoria-investigatin...</a>.
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betwixthewires超过 4 年前
The problem with this article is that it takes at face value the stated goals of the pandemic response: to slow the spread of coronavirus. And while that is a goal, it is not the top goal. If it could be, it probably would be.<p>The main goal is to soothe the public. People aren&#x27;t told to wipe surfaces because it reduces the spread, people are told to wipe surfaces because this is all people can do. People are told to wear surgical masks, which say on the side of the box that they do not protect against viruses, because it is something they can do. People don&#x27;t like to feel powerless. People cannot disinfect the air. But they can wipe surfaces and cover their faces with a piece of cloth, and keep busy with something to feel like they&#x27;re doing something to protect themselves and others.<p>Public messaging exist to manage people, nothing more.
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vimy超过 4 年前
Why can&#x27;t we put HEPA purifiers in every room?
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BenoitEssiambre超过 4 年前
It&#x27;s been a year now, why can&#x27;t I buy a N95 mask?
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2Gkashmiri超过 4 年前
i am taking an exam which i have to do today in a few hours. offline, 30 in large room, no ventilation and no masks for 60-70% of examinees. fuck me<p>this is india btw, where magically cases have dropped even when there is no lockdown and people are not willing to get vaccinated because homegrown vaccine hasnt even completed clinical trials yet...
nikolay超过 4 年前
The issue is the virus attaching to dust particles and getting airborne from surfaces, and getting inhaled.
travbrack超过 4 年前
Put the kids under a tent (not fully enclosed) with some propane heaters in the parking lot of the school.
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null_object超过 4 年前
In Sweden people continually blow their nose by holding one nostril and blasting the mucus from the other straight out into the air. Joggers of both sexes (but mostly men) do this all the time, even with other people all around them on the street.<p>When I last got the subway an older guy did it on the platform, just before the train doors opened and the passengers walked out - presumably straight through the fine droplets hanging in the air.<p>No-one here seems to think this habit is strange, and those times I’ve said anything to the people doing it they are genuinely mystified by my complaint. Maybe this article should be more widely disseminated...
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torgian超过 4 年前
Fill the air with bleach, that&#x27;ll take care of it!
Capira超过 4 年前
A group of renown epidemiologists from Stanford, Oxford and Harvard demand: &quot;Those who are not vulnerable should immediately be allowed to resume life as normal.&quot;<p><a href="http:&#x2F;&#x2F;gbdeclaration.org&#x2F;" rel="nofollow">http:&#x2F;&#x2F;gbdeclaration.org&#x2F;</a>
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