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PeterDaszak's profile
Peter Daszak
Peter Daszak
Peter Daszak
@PeterDaszak

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Peter Daszak

@PeterDaszak

@EcoHealthNYC President. @theNASEM Forum on #microbialthreats Chair. Zoologist. Parasitologist. Ecologist. British. American.

New York, NY
ecohealthalliance.org
Joined June 2009

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    Peter Daszak‏ @PeterDaszak 14 May 2020

    It’s official: “substantial probability that normal speaking causes airborne virus transmission in confined environments.” 1 minute of talking loudly can produce more than 1,000 virus-containing droplets that could linger in the air for over 8 minutes.https://www.usatoday.com/story/news/nation/2020/05/13/closed-environments-high-risk-coronavirus-infections/5186862002/ …

    4:15 AM - 14 May 2020
    • 584 Retweets
    • 800 Likes
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    40 replies 584 retweets 800 likes
      1. New conversation
      2. Peter Daszak‏ @PeterDaszak 14 May 2020

        Here’s the paper behind the headline: https://www.pnas.org/content/early/2020/05/12/2006874117 …

        2 replies 53 retweets 88 likes
        Show this thread
      3. Peter Daszak‏ @PeterDaszak 14 May 2020

        The authors suggest that loud speech in a closed room (“stagnant airflow”) will produce droplets that can linger as long as 8-14 minutes. This could be one of the reasons for substantial spread of COVID-19, esp combined with asymptomatic or presymptomatic shedding.

        5 replies 36 retweets 61 likes
        Show this thread
      4. Peter Daszak‏ @PeterDaszak 14 May 2020

        It also supports signs in many parks (esp here in NY State) telling us to use the park for exercise/dog walking, not stopping & chatting. Yes it’s outdoors but just speaking loudly is riskier than many of us prob realized.

        4 replies 16 retweets 50 likes
        Show this thread
      5. End of conversation
      1. New conversation
      2. Liz Shackleford‏ @lizzylou42 14 May 2020
        Replying to @PeterDaszak @MackayIM

        I'm a teacher. Speaking loudly in confined environments is a key requirement of my job. So again, schools are totally safe, right? No cause for concern at all?

        3 replies 11 retweets 46 likes
      3. Peter Daszak‏ @PeterDaszak 14 May 2020
        Replying to @lizzylou42 @MackayIM

        And I’m sure the kids will be speaking in hushed tones when they return to school after a long lockdown!! - yes sarcasm folks...I’m a parent!

        2 replies 5 retweets 35 likes
      4. End of conversation
      1. New conversation
      2. David Corbett‏ @AlleyDiaspora 14 May 2020
        Replying to @PeterDaszak @MackayIM

        Why is this only coming out now? This was known months ago

        1 reply 0 retweets 6 likes
      3. Peter Daszak‏ @PeterDaszak 14 May 2020
        Replying to @AlleyDiaspora @MackayIM

        I think there was discussion about this earlier & other evidence suggesting COVID-19 can be spread efficiently in confined spaces (eg restaurant event) but this paper is a very detailed test of capacity to spread via droplets & final version of this paper has just been published.

        1 reply 0 retweets 1 like
      4. Show replies
      1. New conversation
      2. Joe Mastrangelo‏ @BostonBeernuts 14 May 2020
        Replying to @PeterDaszak

        Is that with or without masks

        1 reply 0 retweets 1 like
      3. Kevin Stewart‏ @stewak2 14 May 2020
        Replying to @BostonBeernuts @PeterDaszak

        Without

        0 replies 0 retweets 1 like
      4. End of conversation
      1. New conversation
      2. Aredafir‏ @aredafir 14 May 2020
        Replying to @PeterDaszak @RonanKelly13

        And @WHO said it is not airborne 🤨🙄😐

        2 replies 0 retweets 4 likes
      3. Peter Daszak‏ @PeterDaszak 14 May 2020
        Replying to @aredafir @RonanKelly13 @WHO

        Well they're strictly right, I believe. Droplet transmission & people touching contaminated surfaces are dominant pathways for COVID-19 person-to-person spread. This paper shows there's also some risk in a confined space w/ loud speaking. Wearing a mask therefore critical.

        3 replies 2 retweets 23 likes
      4. Show replies

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