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During the SARS epidemic, "nosocomial" or hospital driven spread of the virus was a major contributor to the epidemic. Something like 77% of SARS cases in Toronto acquired in hospitals.
Here's the reference on that.

nationalacademies.org/hmd/~/media/Fi…
CNN raised the idea of a "super spreader" -- someone who infects many others.

It's also called the 20/80 rule: a small percentage of victims cause most transmission.

superspreading can have to do with context (airplane cabin) as well as individual biology (immune supression).
superspreading review sciencedirect.com/science/articl…
From the archives "Superspreading SARS Events, Beijing, 2003" wwwnc.cdc.gov/eid/article/10…
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Antonio Regalado
@antonioregalado
I've noticed that Twitter is a cesspool of fake information about the coronavirus.

Here is a run down of top conspiracy theories.
I should say I am willing to entertain that some of the conspiracy theories are true. Just hard to tell. The information flow is being twisted by anti-CCP accounts linked to Hong Kong protests.
top conspiracy theory about coronavirus is that it was created by a military virus research lab near Wuhan. newsmax.com/newsfront/gert…
Read 4 tweets
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Antonio Regalado
@antonioregalado
Because my main reporting subject is the cutting edge of biotechnology and conception, I will listen to Trump speech at the March of Life rally, starting shortly live and at CSPAN, and thread any highlights relevant to R&D.

c-span.org/video/?468482-…
Intro music is House of the Rising Sun by the Animals.

Not sure what this means, if anything. I guess it's about some kind of den of sin.

getyarn.io/yarn-clip/9468…
Here comes Trump. Song is God Bless The USA by Lee Greenwood.
Read 12 tweets
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Antonio Regalado
@antonioregalado
I updated our annual chart on the direct-to-consumer DNA testing market. Data (which is pretty dodgy) indicates a massive slowdown in the rate of growth, from 100% a year to about 20%.

technologyreview.com/f/615088/is-th…
23andMe hasn't given a figure for their database size since July (10 million). Perhaps because it has not hit the next integer (11 million) yet.
Here is my calculation of the year over year growth rate of the main ancestry databases. Total people ever tested had been doubling each year. No longer
Read 3 tweets

Related threads

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Eric Feigl-Ding
@DrEricDing
WHY 🦠 CFR MATH IS HARD: Uncertainties of naive case count estimates. Graph shows how the ratio of the number of confirmed deaths and case counts changed over time. Case counts are corrected for 3-fold or 30-fold under-reporting and diagnostic delay 🧵: smw.ch/article/doi/sm…
2) ...In addition, example of diagnosis taken 2, 4, and 7 days prior to the date of the count of confirmed death. The latter is meant to illustrate the effect of the delay between diagnosis and death or recovery. *This actual delay is likely longer than one week*.
3) Implication is that while a) underdiagnosis will mean the real CFR is lower, b) a longer delay from diagnosis to death/recovery will mean the real CFR is higher. Hence there is a tug of war between A vs B above for estimating true CFR. That’s why we can’t know true CFR yet.
Read 9 tweets
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Dr. Theresa Tam
@CPHO_Canada
1/5 I am concerned about the growing number of reports of #racism and stigmatizing comments on social media directed to people of Chinese and Asian descent related to #2019nCOV #coronavirus. #EndStigma
2/5 It is understandable that our fears increase during times like this. However, we need to remember that cohesion in our collective efforts is important.
3/5 Everyone has a part to play in preventing the spread of the virus. The Chinese community and all travellers from affected areas are a key part of these efforts. #2019nCoV #coronavirus
Read 5 tweets
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Christophe Barraud🛢
@C_Barraud
🇨🇳 #China (1) | The question is no longer if, but how hard, the #coronavirus will damage Chinese economy (and its trading partners) in 1Q20.
🇨🇳 #China (2) | A blockage of 16 cities (~50 million people) coupled with the extension of the Lunar New Year holiday and prohibition for Cos to return to work soon implies that 1Q will fall below 6% for the first time since QoQ figures are recorded.
🇨🇳 #China (3) | The impact will probably broaden from retail sales, tourism/transportation...

Read 93 tweets
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DocRock1007 🇺🇸
@DocRock1007
...to San Francisco. apnews.com/cc77e92054c495…
2. Roads in and out of #Wuhan (even small side roads) being barricaded with piles of dirt/rocks to block all traffic in or out.
3. "Ye shall not eat any thing with the blood: neither shall ye use enchantment, nor observe times. Ye shall not .. print any marks upon you: I am the LORD. Do not prostitute thy daughter, to cause her to be a whore; lest the land fall to whoredom"..."apnews.com/d59f43a911996a…
Read 54 tweets
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Ikpe Ronald Kelechi MBBS, MSc #FixNaijaHealthCare
@ronikpe
The taxi screeched into the hospital premises. The young man leapt out of the car like in the movies.

‘ Doctor ! Doctor ! My wife ! My wife ooo.

The doctor ran out and looked into the vehicle.

He wore gloves.

Read on!
It’s a 🧵
#TalesOfDrRon
Perpetual was excited as she was close to the end of her pregnancy. It had been a challenging three trimesters but she had survived them all.

The pregnancy was not as straightforward as they had planned. Multiple admissions and lots of out patient visits
She worshipped with one of the churches down her street, the church was relatively new and they enjoyed the proximity it gave them from the house, just a walking distance.

They held cell meetings weekly, that was where she had met Cecilia.
Read 19 tweets
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Rob Wijnberg
@robwijnberg
1/ (Thread) Instead of worrying about fake news, I wrote an essay about why I think *real news* poses a way bigger problem for our society. I know that’s a bold statement, but I’ll summarize it in this thread. Hope you’ll read on and retweet! 🙏🙌
2/ Disclaimer: with my news criticism, I *am not* jumping on the “blame the media” bandwagon. I’m just as concerned about the growing hostility towards journalists as my colleagues at news organizations the world over. When I say news, I don’t mean *all of journalism*.
3/ On the other hand: I do think that the hostility, distrust, and cynicism towards media is a good reason for way more fundamental introspection within journalism circles: why are news media hated so much?
Read 21 tweets

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