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DrDenaGrayson's profile
Dena Grayson, MD, PhD
Dena Grayson, MD, PhD
Dena Grayson, MD, PhD
Verified account
@DrDenaGrayson

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Dena Grayson, MD, PhDVerified account

@DrDenaGrayson

Ran for Congress. #Ebola expert. #Coronavirus, #COVID19. Appearances: @FoxNews, @SkyNews, @BBC @60Mins; featured: @NYTimes, @BostonGlobe.

Florida
denagrayson.com
Joined August 2013

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    Dena Grayson, MD, PhD‏Verified account @DrDenaGrayson 30 Jun 2020

    ⚠️New study of 200 #COVID19 patients, many with mild or no symptoms, suggests that up to TWICE as many people than detected by antibody tests may be immune, based on tests for T-cell immunity (cells that kill virus-infected cells). 1/ @thespybriefhttps://news.ki.se/immunity-to-covid-19-is-probably-higher-than-tests-have-shown?_ga=2.140767861.677108381.1593454468-436267287.1454932504 …

    4:22 PM - 30 Jun 2020
    • 476 Retweets
    • 1,064 Likes
    • Maria Elena de las Heras Alonso Margaret Thomas 🗳️🌱 Linda Wint drixthus NJTrainDelays wishes for a better 2022 Toni Anderson Susan ⚖️ Winning Emergence Just Joan 4 BETO 4 TX Governor
    64 replies 476 retweets 1,064 likes
      1. New conversation
      2. Dena Grayson, MD, PhD‏Verified account @DrDenaGrayson 30 Jun 2020

        This study included hospitalized & non-hospitalized patients and exposed *asymptomatic* family members who returned to #Sweden after holidaying in the Alps in March. Healthy ASYMPTOMATIC blood donors who donated in 2020 and 2019 (pre-#pandemic control group) were also included.

        3 replies 42 retweets 147 likes
        Show this thread
      3. Dena Grayson, MD, PhD‏Verified account @DrDenaGrayson 30 Jun 2020

        👏🏼WOW. ~30% of blood donors in May 2020 had #COVID19-specific T cells, *much higher* than previous antibody tests showed (7% in this study). Not only did patients with confirmed #COVID19 have T-cell immunity, so did many of their exposed *asymptomatic* family members.😃

        3 replies 72 retweets 276 likes
        Show this thread
      4. Dena Grayson, MD, PhD‏Verified account @DrDenaGrayson 30 Jun 2020

        Encouraging news. Patients with severe #COVID19 often developed a *strong* T-cell response AND antibodies. In patients with mild symptoms, it was not always possible to detect antibodies, but many still showed a *marked T-cell response* (likely meaning that they are also IMMUNE).

        17 replies 167 retweets 593 likes
        Show this thread
      5. Dena Grayson, MD, PhD‏Verified account @DrDenaGrayson 30 Jun 2020

        These T-cell results are consistent with studies after vaccination with approved vaccines for other viruses. Larger/longer-term studies are needed on T cells & antibodies to understand how long-lasting the immunity is, and how these 2 types of #COVID19 immunity are related.

        2 replies 40 retweets 195 likes
        Show this thread
      6. Dena Grayson, MD, PhD‏Verified account @DrDenaGrayson 30 Jun 2020

        Important: these are PRELIMINARY data that have not yet been peer-reviewed. Link to the pre-print, published online is provided below. 100% of severe convalescent (recovered) #COVID19 patients had antibodies vs 64% of exposed relatives (bottom row). https://www.biorxiv.org/content/10.1101/2020.06.29.174888v1.full.pdf …pic.twitter.com/bshLDU4fjI

        6 replies 61 retweets 210 likes
        Show this thread
      7. Dena Grayson, MD, PhD‏Verified account @DrDenaGrayson 30 Jun 2020

        Dena Grayson, MD, PhD Retweeted Dena Grayson, MD, PhD

        Overall, this study is encouraging, as it suggests that more people may be immune to #coronavirus than previously shown by antibody testing. T-cell immunity could last longer than antibodies (more study needed). If so, that's great news for herd immunity.https://twitter.com/DrDenaGrayson/status/1278106706120183813?s=20 …

        Dena Grayson, MD, PhD added,

        Dena Grayson, MD, PhDVerified account @DrDenaGrayson
        ⚠️New study of 200 #COVID19 patients, many with mild or no symptoms, suggests that up to TWICE as many people than detected by antibody tests may be immune, based on tests for T-cell immunity (cells that kill virus-infected cells). 1/ @thespybrief https://news.ki.se/immunity-to-covid-19-is-probably-higher-than-tests-have-shown?_ga=2.140767861.677108381.1593454468-436267287.1454932504 …
        Show this thread
        28 replies 135 retweets 441 likes
        Show this thread
      8. End of conversation
      1. New conversation
      2. Jeff Lefebreve‏ @JLefebreve 30 Jun 2020
        Replying to @DrDenaGrayson @thespybrief

        How long will it last though ?

        1 reply 1 retweet 5 likes
      3. Aidos‏ @stinkeeeeee 30 Jun 2020
        Replying to @JLefebreve @DrDenaGrayson @thespybrief

        T-cell immunity for the original SARS was observed in patients 17 years later.

        0 replies 0 retweets 13 likes
      4. End of conversation
      1. jaksy‏ @Blergy1 30 Jun 2020
        Replying to @DrDenaGrayson @thespybrief

        Wouldn’t that be great!

        0 replies 1 retweet 6 likes
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      1. New conversation
      2. FierceMom‏ @MichelleM93432 30 Jun 2020
        Replying to @DrDenaGrayson @thespybrief

        What would the outcome be in your opinion if someone with a primary immune deficiency received IVIG therapy that included these immunoglobulins? Would this give them some immunity or does the disfunction/ lack of T-cells negate that benefit?

        3 replies 1 retweet 1 like
      3. (ɹǝʇʇnq) ɐ ǝ ɥ s p ǝǝq (ʎǝuoɥ) WƎ‏ @embeeshea 30 Jun 2020
        Replying to @MichelleM93432 @DrDenaGrayson @thespybrief

        This is part of my world, too. One adult child on IViG therapy and 7 first cousins.

        0 replies 0 retweets 1 like
      4. End of conversation

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