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DrEricDing's profile
Eric Feigl-Ding
Eric Feigl-Ding
Eric Feigl-Ding
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@DrEricDing

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Eric Feigl-DingVerified account

@DrEricDing

Epidemiologist & health economist. Senior Fellow @FAScientists. Former 16 years @Harvard. @JohnsHopkins alum. COVID updates since Jan '20: http://nym.ag/3olszuo 

Washington DC & Virginia
fas.org/expert/eric-fe…
Joined January 2009

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    1. Eric Feigl-Ding‏Verified account @DrEricDing 12 Jun 2020

      ⚠️AIRBORNE is the “dominant” route for the coronavirus transmission! New PNAS paper by a Nobel laureate’s group concludes this based on study of several studies and how transmission wasn’t truly slow until mask rules went into place. MASKS FOR ALL, please.https://www.pnas.org/content/early/2020/06/10/2009637117 …

      287 replies 4,789 retweets 7,406 likes
      Show this thread
    2. Eric Feigl-Ding‏Verified account @DrEricDing 12 Jun 2020

      2) The paper also calls out WHO and CDC for “largely ignoring” the importance of airborne transmission. And also blames the lack of face mask as key factor for poor trends in many countries.pic.twitter.com/m8oHC7VqXx

      8 replies 329 retweets 782 likes
      Show this thread
    3. Eric Feigl-Ding‏Verified account @DrEricDing 12 Jun 2020

      3) “wearing of face masks in public corresponds to most effective means to prevent interhuman transmission, and this inexpensive practice, in conjunction w/ social distancing, quarantine, and contact tracing, represents the most likely fighting opportunity to stop the pandemic”

      10 replies 369 retweets 855 likes
      Show this thread
    4. Eric Feigl-Ding‏Verified account @DrEricDing 12 Jun 2020

      4) “Fig. 3. Contrasting the trends of new infections between NYC and the United States. Daily new confirmed infections in (A) NYC and (B) the United States (minus NYC). The vertical lines label the dates for social distancing, stay-at-home orders, and mandated face-covering.”pic.twitter.com/9p3mmOZfJO

      9 replies 155 retweets 391 likes
      Show this thread
    5. Eric Feigl-Ding‏Verified account @DrEricDing 12 Jun 2020

      5) “Fig. 4. Transmission of COVID-19. Human atomization of viruses arises from coughing or sneezing, producing virus droplets (>5 μm) and aerosols (<5 μm). Virus transmission from person to person occurs through direct/indirect contact and airborne aerosol/droplet routes...”pic.twitter.com/Nj2YI4X8l2

      3 replies 178 retweets 379 likes
      Show this thread
    6. Eric Feigl-Ding‏Verified account @DrEricDing 12 Jun 2020

      6) “Large droplets mainly settle out of air to cause contamination, while aerosols are efficiently dispersed in air. Direct & airborne transmissions occur in short range and extended distance/time, respectively. Inhaled airborne viruses deposit directly into respiration tract.”

      7 replies 112 retweets 301 likes
      Show this thread
    7. Eric Feigl-Ding‏Verified account @DrEricDing 12 Jun 2020

      7) “Fig. 5. Mitigation paradigm. Scenarios transmission under distancing/quarantine/isolation measure only (path a), measures with distancing/quarantine/isolation followed by face covering (path b), and measures w/ simul face covering and distancing/quarantine/isolation (path c).pic.twitter.com/4IBgKeC5Gu

      4 replies 97 retweets 262 likes
      Show this thread
    8. Eric Feigl-Ding‏Verified account @DrEricDing 12 Jun 2020

      8) “The short-dashed arrows label possible remnants of virus transmission due to circumstances when the measure is not possible or disobeyed and/or imperfection of the measure.”

      4 replies 58 retweets 208 likes
      Show this thread
    9. Eric Feigl-Ding‏Verified account @DrEricDing 12 Jun 2020

      Eric Feigl-Ding Retweeted Don Milton

      9) Longer discussion thread by another respiratory researcher on this study: https://twitter.com/don_milton/status/1271251393433780225?s=21 …https://twitter.com/Don_Milton/status/1271251393433780225 …

      Eric Feigl-Ding added,

      Don Milton @Don_Milton
      Identifying airborne transmission as the dominant route for the spread of COVID-19 https://www.pnas.org/content/early/2020/06/10/2009637117 … Analysis by Nobel Laureate Mario Molina uses the sequential start of soc-dist, stay-at-home, & mask mandates to show only face masks worked -> airborne transmission
      Show this thread
      9 replies 56 retweets 180 likes
      Show this thread
    10. Eric Feigl-Ding‏Verified account @DrEricDing 12 Jun 2020

      Eric Feigl-Ding Retweeted Jeremy Faust MD MS (ER physician)

      10) A detractor of the PNAS study. He has some valid points the methods are weaker than initially thought. He still supports masks for all. https://twitter.com/jeremyfaust/status/1271572189490397184?s=21 …https://twitter.com/jeremyfaust/status/1271572189490397184 …

      Eric Feigl-Ding added,

      Jeremy Faust MD MS (ER physician)Verified account @jeremyfaust
      Do I support masks? Yes. Mask wearing is an important component of a suite of things we can do to stop coronavirus. Does this paper earn its title? Do their data justify the conclusions? No. I just don’t see it. And why has no one noticed this? https://www.pnas.org/content/early/2020/06/10/2009637117 …
      Show this thread
      3 replies 38 retweets 127 likes
      Show this thread
      Eric Feigl-Ding‏Verified account @DrEricDing 12 Jun 2020

      Eric Feigl-Ding Retweeted Eric Feigl-Ding

      11) Before anyone says this study’s conclusions are wrong about masks, there is ANOTHER arguably much better study on masks today. Much richer data: https://twitter.com/drericding/status/1271618249042558978?s=21 …https://twitter.com/DrEricDing/status/1271618249042558978 …

      Eric Feigl-Ding added,

      Eric Feigl-DingVerified account @DrEricDing
      ⚠️Another new study on mask wearing: but this time assuming R0 of 2.2 or 4, effectiveness against trans, & pop% wearing it. Good news is it works. Bad news: it needs high 95% effectiveness and also high 75% or more mask wearing compliance to get under R<1. https://royalsocietypublishing.org/doi/10.1098/rspa.2020.0376 … pic.twitter.com/UL84kYpz42
      Show this thread
      7:14 PM - 12 Jun 2020
      • 114 Retweets
      • 250 Likes
      • Harry Wood 🕷 #COVIDisAirborne Vichy Trump du Putin Dr. Keith Thraen-Borowski 😎 Patricia aka mamatrix 😎⚪ Carlos Bauche Madero Brian McGonigal Cap Notangry ⁠Whiteguy C.C. Francis
      7 replies 114 retweets 250 likes
        1. Eric Feigl-Ding‏Verified account @DrEricDing 12 Jun 2020

          From the newest mask study, it clearly shows the dramatic effect of mask wearing on reducing the R down to 1 (green) or below (below).pic.twitter.com/MAdUbFwgwy

          13 replies 132 retweets 280 likes
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        2. HPT (@HyperionPrime on GETTR)‏ @HPT30147483 15 Jun 2020
          Replying to @DrEricDing

          No amount of data will overcome the fact that the CDC said masks DON'T WORK.

          1 reply 0 retweets 1 like
        3. Fietser Pete (Peter Som de Cerff)‏ @psomdecerff 15 Jun 2020
          Replying to @HPT30147483 @DrEricDing

          The ONE TIME that the right wing actually believed the gov't!!

          0 replies 0 retweets 0 likes
        4. End of conversation
        1. Ashley Haldon‏ @Policy_evidence 15 Jun 2020
          Replying to @DrEricDing

          But this Royal Society paper is based on modeling and not empirical data. The other empirical paper was deeply flawed. Is there empirical data available in s good paper on masks?

          0 replies 0 retweets 0 likes
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