151–160 of 298 posts
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Yes, only a N95 or better mask would protect you from incoming, as opposed to outgoing, viruses, and these masks are both impractical for everyday wear and need to be conserved for public health users.
Also, you need to wear eye protection as well.
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Yes, only a N95 or better mask would protect you from incoming, as opposed to outgoing, viruses, and these masks are both impractical for everyday wear and need to be conserved for public health users.
I think that different sources are using different definitions of "effective" here. If a simple surgical mask cuts down transmission rates by 50% that isn't anywhere near good enough for health workers working with sick patients every day. But it might still make a significant improvement in your chances of getting infected and, combined with social distancing, might drop the R0 below 1. Hence why Chinese and Korean…
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It looks like CDC recommends to use them for ≤ 8 hours (continuous or intermittent) [0]. [0] https://www.cdc.gov/niosh/topics/hcwcontrols/recommendedguid...
Presumably their effectiveness is reduced then, rather than negated. Aren't they just close bound fibres that form a filter?
> One study found that nurses averaged 25 touches per shift to their face, eyes, or N95 respirator during extended use.
How problematic that touching is probably scales with how problematic your environment is. They're pretty sponge-like. Wearing a surgical mask over an N95 would help a lot.
In a controlled biosafety level 3 lab, "single use" things are definitely the most common, where everything exposed to the outside world is destroyed after you're done. What's worn underneath is washed and you're forced to take a shower. So that's what you do if you know you're in a contaminated environment – not sure what I'd do in a public place.
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If that's your goal (and it is not an unreasonable one) you can achieve that with a bandanna. You don't need a surgical mask.
I'm enjoying the thought of software engineers everywhere coming into work with bandanas covering their faces.
I see a lot of "may", "possible", "if", ... Is this how people typically write a paper to Medical Virology?
As with the other person, I'm not in the field so I can't actually answer.
My prior, though, would be that papers that come in the early period of a response to a global widespread disease are not representative of the typical status quo in the field.
Not a biologist, but reading the paper, the chain of reasoning appears to be summarized in this section: > Taken together, the neuroinvasive propensity has been demonstrated as a common feature of CoVs. In light of the high similarity between SARS-CoV and SARS-CoV2, it is quite likely that SARS-CoV-2 also possesses a similar potential. Based on an epidemiological survey on COVID-19, the median time from the first sym…
2. Upper versus lower: when people have a URI the upper airways meaning the nasopharyngeal, oropharyngeal, and trachea are predominantly affected. The typical symptoms are runny nose, nasal congestion, sore throat. However, SARS/COVID tends to cause a lower respiratory syndrome affecting the small airways deep in the lungs, namely the alveoli and small bronchioles. It is entirely consistent to hypothesize that infection through the upper airway mucosa is “worse” but the target cells that primarily cause disease are in the lower airway.
I see a lot of "may", "possible", "if", ... Is this how people typically write a paper to Medical Virology?
What goes wrong is articles are picked up by mass media and they drop the "may", "possible".
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Cigar smokers FTW...they dont inhale ;)
In that case, it seems like an even weirder affect to take on - none of the nicotine, all of the bad breath and mouth cancer.
No smoking is good for you but then again the leading cause of death is birth so enjoy the time you have. If cigars are your thing smoke it up
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This is super scary. Before I read this I was happily thinking hey it's no worse than flu. Now... I'm wishing I didn't live in a huge city riding the subway daily.
I don't understand the worry. As of yesterday, China, a country of 1.4B, had 80,000 cases and 3,000 dead. Last year, the US had 36M infected with the flu and 34,000 died.[1] Are you panicking about the flu? [1] https://www.cdc.gov/flu/about/burden/2018-2019.html
Edit: source added
https://inews.co.uk/news/world/china-coronavirus-covid-19-de...
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Why is it easier to get to the brain from the nose compares to the mouth or eyes?
Very possibly because the olfactory bulb is basically a bit of the brain exposed to the atmosphere. See the illustration on the wikipedia page [0]. [0] https://en.wikipedia.org/wiki/Olfactory_bulb