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GidMK's profile
Health Nerd
Health Nerd
Health Nerd
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@GidMK

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Health NerdVerified account

@GidMK

Epidemiologist. Writer (Guardian, Observer etc). "Well known research trouble-maker". PhDing at @UoW Host of @senscipod Email gidmk.healthnerd@gmail.com he/him

Sydney, New South Wales
theguardian.com/profile/gideon…
Joined November 2015

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    1. Kimberly Prather, Ph.D.‏ @kprather88 9 Jul 2020
      Replying to @angie_rasmussen @jljcolorado @biomathematicus

      I am an aerosol scientist. There is a continuum of sizes--and they are changing due to evaporation/condensation as they float in the air. When we talk about "aerosol transmission", we are talking about particles < 10 microns (and even larger ones that can shrink to this size).

      1 reply 1 retweet 14 likes
    2. Dr. Angela Rasmussen‏Verified account @angie_rasmussen 9 Jul 2020
      Replying to @kprather88 @jljcolorado @biomathematicus

      It is a misunderstanding of this continuum (even how scientists discuss it with each other) that has contributed to this problem of making aerosols vs inhaled droplets a false dichotomy, and the miscommunications that inevitably result. The terms/discussion needs to change.

      3 replies 0 retweets 6 likes
    3. Dr. Angela Rasmussen‏Verified account @angie_rasmussen 9 Jul 2020
      Replying to @angie_rasmussen @kprather88 and

      I don't know any virologists who think inhaled smaller "droplets" (too big to be aerosols but much smaller than large droplets) aren't drivers of transmission. The epi evidence is pretty clear about that. There's less epidemiological evidence to support travel through air ducts.

      3 replies 2 retweets 16 likes
    4. Health Nerd‏Verified account @GidMK 9 Jul 2020
      Replying to @angie_rasmussen @kprather88 and

      I think this is where the epidemiological evidence really is important. If you view particle size purely from a theoretical perspective in a vacuum, it may seem likely that the virus should spread often through air ducts and the like But it doesn't, really

      3 replies 0 retweets 3 likes
    5. Health Nerd‏Verified account @GidMK 9 Jul 2020
      Replying to @GidMK @angie_rasmussen and

      We can theorise about how the virus might spread - and investigate the most minute of droplets/aerosols in the process - but ultimately if it doesn't match the actual evidence of transmission from contact tracing then I'm not convinced 🤷‍♂️

      1 reply 0 retweets 5 likes
    6. Jose-Luis Jimenez‏Verified account @jljcolorado 9 Jul 2020
      Replying to @GidMK @angie_rasmussen and

      We have investigated the Skagit choir, 1 person gave it to 53 despite limited contact. Nearly impossible to explain except by aerosols. Similar for other superspreading events

      2 replies 0 retweets 7 likes
    7. Health Nerd‏Verified account @GidMK 9 Jul 2020
      Replying to @jljcolorado @angie_rasmussen and

      That's not true, actually. As both the CDC and WHO have pointed out, it is perfectly plausible that fomite and droplet spread could've caused that outbreak

      1 reply 0 retweets 1 like
    8. Jose-Luis Jimenez‏Verified account @jljcolorado 9 Jul 2020
      Replying to @GidMK @angie_rasmussen and

      That is wrong. We have investigated in more detail from aerosol point of view. No realistic explanation otherwisehttps://www.medrxiv.org/content/10.1101/2020.06.15.20132027v1 …

      1 reply 0 retweets 12 likes
    9. Health Nerd‏Verified account @GidMK 10 Jul 2020
      Replying to @jljcolorado @angie_rasmussen and

      That paper appears to literally assume your conclusion

      1 reply 0 retweets 1 like
    10. Jose-Luis Jimenez‏Verified account @jljcolorado 10 Jul 2020
      Replying to @GidMK @angie_rasmussen and

      Because there is no other good way to explain it. Sick person was in fixed positions in room singing, did not touch others. Fomites low likelihood per CDC. How can person spit enough droplets within 1 m if 53 people?

      2 replies 0 retweets 7 likes
      Health Nerd‏Verified account @GidMK 10 Jul 2020
      Replying to @jljcolorado @angie_rasmussen and

      That's just a circular argument tho. "It is because it must be". Many epidemiological explanations e.g. recall bias which might explain it, which is why epidemiologists have been more cautious with inference

      12:28 AM - 10 Jul 2020
      • 1 Like
      • Dr. Angela Rasmussen
      1 reply 0 retweets 1 like
        1. New conversation
        2. Jose-Luis Jimenez‏Verified account @jljcolorado 10 Jul 2020
          Replying to @GidMK @angie_rasmussen and

          No it is not. It is likely to be, because it can explain it w/o contortionism. And because none of the alternative explanations are plausible.

          2 replies 0 retweets 1 like
        3. Health Nerd‏Verified account @GidMK 10 Jul 2020
          Replying to @jljcolorado @angie_rasmussen and

          If you don't think that there are plausible ways in which a group of people who moved around and socialised for 2+ hours might have interacted closely enough to spread disease via droplets and fomites then I'd recommend reading up on the topic e.g.https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1828811/ …

          3 replies 0 retweets 2 likes
        4. Show replies

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