Author Topic: Interesting Articles: COVID-19 Edition  (Read 162810 times)

Offline ExGingi

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Re: Interesting Articles: COVID-19 Edition
« Reply #1060 on: December 24, 2020, 09:26:28 PM »
https://www.bhol.co.il/news/1168037

Not sure where to post this, so I posted here, even though that website doesn't really qualify as interesting articles.
I've been waiting over 5 years with bated breath for someone to say that!
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Offline AsherO

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Re: Interesting Articles: COVID-19 Edition
« Reply #1061 on: December 27, 2020, 11:27:05 PM »
Face coverings and respiratory tract droplet dispersion:

https://royalsocietypublishing.org/doi/abs/10.1098/rsos.201663
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Offline Euclid

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Re: Interesting Articles: COVID-19 Edition
« Reply #1062 on: December 27, 2020, 11:33:34 PM »
Face coverings and respiratory tract droplet dispersion:

https://royalsocietypublishing.org/doi/abs/10.1098/rsos.201663
They used an iPhone 7 camera in 2020?!?

Offline Yo ssi

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Re: Interesting Articles: COVID-19 Edition
« Reply #1063 on: December 27, 2020, 11:38:35 PM »
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Offline AsherO

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Re: Interesting Articles: COVID-19 Edition
« Reply #1064 on: December 27, 2020, 11:43:40 PM »
Care to summarize?

Not for me, too scientific.
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Offline biobook

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Re: Interesting Articles: COVID-19 Edition
« Reply #1065 on: December 28, 2020, 12:38:40 AM »
Face coverings and respiratory tract droplet dispersion:

https://royalsocietypublishing.org/doi/abs/10.1098/rsos.201663
To summarize:
They measured how well a mask could block the movement of water droplets - coming from the mouth of a person speaking or coughing, or artificially released through the head of a mannikin.  In all cases, both surgical and cloth masks effectively blocked the particles, such that 10,000 fewer particles were measured at a distance of 6 feet when masks were used. 

This suggests that masks are, in fact, effective in blocking large particles that contain virus.  However, the researchers say that their research can't really be used to conclude that masks are effective if smaller aerosolized particles are important in disease transmission (as now seems to be the case).

Offline Afrages6

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Re: Interesting Articles: COVID-19 Edition
« Reply #1066 on: December 28, 2020, 01:20:00 AM »
Thanks!  This is great! I think this answers @ExGingi 's concern, which was decreasing the time to exit isolation after exposure to an infected person. 

Though it doesn't answer the specific study he wanted, which was "Let's take a group of people with a known exposure to a positive case, isolate them for two weeks to prevent a second exposure, and conduct repeated PCR tests during this time to determine how long it takes for the first positive test to appear." 

I haven't found any study to answer that particular question, but probably for good reason - it would be a waste of time and tests in pursuit of a point of information that is not really practically useful now.  More important is to monitor time since infection and possible symptoms, rather than testing for the virus.
I know this is a little bit of a reach back. But from all of the NFL data we have this year of exposures and daily tests, there hasn’t been a single case of someone testing positive after 7 days from exposure. And these people are all tested daily with PCR tests..

Offline ExGingi

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Re: Interesting Articles: COVID-19 Edition
« Reply #1067 on: December 28, 2020, 09:03:45 AM »
I know this is a little bit of a reach back. But from all of the NFL data we have this year of exposures and daily tests, there hasn’t been a single case of someone testing positive after 7 days from exposure. And these people are all tested daily with PCR tests..

Please! Please! Stop confusing everyone with facts!
I've been waiting over 5 years with bated breath for someone to say that!
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Offline S209

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Re: Interesting Articles: COVID-19 Edition
« Reply #1068 on: December 28, 2020, 09:38:11 AM »
I know this is a little bit of a reach back. But from all of the NFL data we have this year of exposures and daily tests, there hasn’t been a single case of someone testing positive after 7 days from exposure. And these people are all tested daily with PCR tests..
That’s a unique perspective on finding data. It would be cool to see someone publish a paper on this. I’m sure they are looking closely at sports data.
Please! Please! Stop confusing everyone with facts!
?
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Offline neveryou

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Offline Dan

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Re: Interesting Articles: COVID-19 Edition
« Reply #1070 on: December 28, 2020, 10:28:21 AM »
Save your time, I don't answer PM. Post it in the forum and a dedicated DDF'er will get back to you as soon as possible.

Offline flyingace

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Re: Interesting Articles: COVID-19 Edition
« Reply #1071 on: December 28, 2020, 10:30:24 AM »
https://www.lifesitenews.com/news/asymptomatic-transmission-of-covid-19-didnt-occur-at-all-study-of-10-million-finds
Not sure any such study from China is worth anything... but, aren't we worried about pre-symptomatic transmission? People spreading it that are contagious before their symptoms are full-blown? Or does that not exist, either?

Offline AsherO

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Re: Interesting Articles: COVID-19 Edition
« Reply #1072 on: December 28, 2020, 10:42:44 AM »
Aha, today is the day that we are using Wuhan data?
Just need to get my calendar squared.

Yeah, if this data is from early 2020 it makes no sense that it's only getting published now.
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Offline S209

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Re: Interesting Articles: COVID-19 Edition
« Reply #1073 on: December 28, 2020, 02:53:52 PM »
https://www.lifesitenews.com/news/asymptomatic-transmission-of-covid-19-didnt-occur-at-all-study-of-10-million-finds
Total misrepresentation of the study. The study included 300 fully asymptomatic patients who didn’t transmit COVID, but doesn’t address the driver of asymptomatic infection- presumptomatic spread.

Is this really too hard for anyone?
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Online Yehuda57

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Re: Interesting Articles: COVID-19 Edition
« Reply #1074 on: December 28, 2020, 03:12:15 PM »

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Re: Interesting Articles: COVID-19 Edition
« Reply #1075 on: December 28, 2020, 03:17:19 PM »
Feelings don't care about your facts

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Re: Interesting Articles: COVID-19 Edition
« Reply #1076 on: December 28, 2020, 04:21:11 PM »
I wonder if this can be litigated under the equal protection clause.

Would be interesting. I wonder if that had anything to do with the CDC doing an abrupt about-face on their guidelines

Offline PlatinumGuy

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Re: Interesting Articles: COVID-19 Edition
« Reply #1077 on: December 29, 2020, 12:39:57 AM »
https://www.bbc.com/news/world-europe-55465079

Quote
A spokesman in Valais canton said 420 British guests had booked into Verbier accommodation before Christmas and now only about a dozen were left.
Switzerland imposed a 10-day quarantine backdated to 14 December because of the new virus strain spreading in the UK.
The country also stopped flights from the UK and South Africa on 20 December.
Some Swiss hoteliers only discovered the guests had vanished when room service trays were left untouched outside doors, Swiss media reported. Others were called by British tourists demanding their money back once they had safely crossed into France, the BBC's Imogen Foulkes reports from Geneva.
״וזה כלל גדול: שישנא אדם כל דבר שקר. וכל מה שיוסיף שנאה לדרכי השקר – יוסיף אהבה לתורה.״ - אורחות צדיקים


Offline S209

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Re: Interesting Articles: COVID-19 Edition
« Reply #1079 on: December 30, 2020, 01:46:28 AM »
https://rationalground.com/university-of-florida-researchers-find-no-asymptomatic-or-presymptomatic-spread/
Talk about clickbait. The only study included on presymptomatic spread was one that studied 2 presymptomatic patients, of which one went on to infect a contact.

I know a few people who were only exposed to a presymptomatic patient and subsequently got infected. They weren’t exposed to anyone else for weeks before, let alone anyone else with symptomatic COVID. PM me for their numbers.

It’s well known at this point that transmission by patients who remain asymptomatic is relatively rare. This is truly old news
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