@CathNoakes @DavidElfstrom @JbcLiftec @JimRosenthal4 @CorsIAQ @kprather88 @jljcolorado This is significant because the Stadnytskyi et al. (2020) estimates underlie the quanta emission rates by Buonanno et al that are used in many aerosol transmission model
This is an important point, because if you use this data as an assumption for the volume of speech droplets/aerosols then it could be a large overestimate - and I'm being generous using the word *could*.
RT @CappaSnappa: Been thinking about the Stadnytskyi PNAS paper on speech droplets recently. Seeing how it’s been cited over 800 times feel…
RT @CappaSnappa: Been thinking about the Stadnytskyi PNAS paper on speech droplets recently. Seeing how it’s been cited over 800 times feel…
RT @CappaSnappa: Been thinking about the Stadnytskyi PNAS paper on speech droplets recently. Seeing how it’s been cited over 800 times feel…
Been thinking about the Stadnytskyi PNAS paper on speech droplets recently. Seeing how it’s been cited over 800 times feels like it’s time to raise my concerns… 1/10 https://t.co/5BPpfoSpVj
@OUDENT11 @abw2100 @nicolec51814690 @KOCOZach @koconews True, they don’t. Takes about 15 minutes for them to mostly clear out of still air. The word I’m looking for is droplet. Smaller droplets can become aerosolized. They’re still just a smaller droplet.
@Ken36143959 @Harley_Dogg @Jizzle9011 @RooterDouglas @Shaunak2105 @WaitingForPerot Droplets are not dead virus. You are mistaken. And tiny droplets come out of your mouth as you’re speaking https://t.co/h3jt48lS8i.
@_for_mation @AdamBrimson Who said anything about “floating around”? https://t.co/FGSziR6mjf research for you.
@M4verick80 @chriswhite593 @TonyHinton2016 Where did you read that C-19 (~0.1 microns) is not found in droplets of 60 microns or smaller? Please let me know if I have misunderstood the linked report. https://t.co/vtGxJvzoOw https://t.co/bTJG76gDRR
@nightshow81 @dpawel @seanhannity Read the data and conduct your own experiment. https://t.co/81bm1ywnM5
Droplets disappear in the range of 8 to 14 min, which corresponds to droplet nuclei of 4 μm diameter. Meanwhile, the common mask has a porosity of 50 μm to 60 μm. https://t.co/3vRlMJKRtK
@travelinjeebus How long do you think that "time" is then, for this to be "far beyond" it? “In a closed, stagnant air environment, they disappear from the window of view with time constants in the range of 8 to 14 min” Does not require both doors to be o
@Gigi_4Trump @RayneSaltair1 @WTFacts12 LOL, yes, not really a scholarly article :) the CDC and filtering etc: https://t.co/iqa4Ay1Fzc so here is one with data for about moisture particles. https://t.co/fFxRrtv2UR
@isobold @BakaKarasu @RealSexyCyborg Droplet size from speech varies from micro, to barely macro, to easily visible droplets depending sound/volume/speaker. Viral load potential increases with size, but emitted size can rapidly decrease due to dehydration
@ScenarioRosey @ings4palin @RobbersonJon 1. It's true that SARS-CoV-2 virions are 0.1 μm in diameter, but they're exhaled in moist droplets 10-100 µm which are much easier to trap. https://t.co/h6oFwSNKEX
@theTennPatriot That illustration makes the case FOR masks. https://t.co/e6YFkr0cI7
@Thousandyardst8 @haysi87 @Femi_Sorry Here’s sources that prove masks are not too big for the droplets 1. https://t.co/Im7GvVdDIQ 2. https://t.co/wwKuM19vk7 3. https://t.co/AUPHjk5a81 4.“The airborne lifetime of small speech droplets and their potential im
@jeremyphoward @kprather88 Actually, the PNAS paper was accepted already May 4, 2020, and results were widely disseminated in the media in early-mid May 2020. https://t.co/XoHEVqvcHC May 2020
@USNatArchives - 18 months later, archives — where minimal speaking takes place — are still closed, but bars and restaurants are open! Why? The airborne lifetime of small speech droplets and their potential importance in SARS-CoV-2 transmission https://t.c
RT @jeremyphoward: @kprather88 We had visual proof in June 2020 that even large particles could stay airborne for up to an hour https://t.c…
RT @jeremyphoward: @kprather88 We had visual proof in June 2020 that even large particles could stay airborne for up to an hour https://t.c…
RT @jeremyphoward: @kprather88 We had visual proof in June 2020 that even large particles could stay airborne for up to an hour https://t.c…
RT @jeremyphoward: @kprather88 We had visual proof in June 2020 that even large particles could stay airborne for up to an hour https://t.c…
RT @jeremyphoward: @kprather88 We had visual proof in June 2020 that even large particles could stay airborne for up to an hour https://t.c…
@kprather88 We had visual proof in June 2020 that even large particles could stay airborne for up to an hour https://t.co/SIpZjtVHkN
@Szymon49366484 @Stysz https://t.co/Uw5nk2tZej https://t.co/hrUOw7cXnN https://t.co/vm7WxtiM9L https://t.co/txZ4Y4zGQw https://t.co/ZsMlHg6C4Q https://t.co/HLnnfRJDVn Wirus load when Breathing, Talking, and Singing https://t.co/9rbyOOKzpG https://t.
@Lescaut92402461 @alferezdelRey @hermanntertsch Porque no detienes el virus sino las gotitas en la exhalación https://t.co/Yf3sQWF2O2
@DrewDBrandt @dlynndhaem @KristinaKaramo @Traci82296300 The National Academy of Sciences is usually my go to https://t.co/DWOT4840I4
@microlabdoc TB is airborne because it spreads in dust as can measles and hantavirus. Not SARS-CoV-2. It needs water. Also, "the probability that a 1-μm droplet nucleus (scaled back to its originally hydrated 3-μm size) contains a virion is only 0.01%." ht
@katepanda2 小さな発話液滴の空中寿命とSARS-CoV-2感染におけるそれらの潜在的な重要性 https://t.co/TPR0MQFp2i
@HeinenPm @TheStephP @CDCgov @Laurie_Garrett "The probability that a droplet contains one or more virions scales with its initial hydrated volume, that is, as the cube of its diameter, d." https://t.co/5sYM79H7oR
(Also, this much older and less flashy paper from alllll the way back in June 2020.) https://t.co/XN5UakSJ5m
@DaleWil39870290 @fubarhouse @gomoneygoodell @JoeTabs I have studies to back this up as well. https://t.co/Im7GvVdDIQ 2. https://t.co/wwKuM19vk7 3. https://t.co/AUPHjk5a81 4. https://t.co/EHipN7SFm8
Yep, happens in shelters too.
@ChadFarrenburg @ashishkjha No such thing as common sense, Chad. https://t.co/upMEfC1N1D
@the_dusts @HenningDekant @johnwshumway @StephenGrantMD I think professionals are more equipped to answer that question than I am: https://t.co/0y5DpNFDtG
@LizzieSeesRed @SabrosaPurr @ChrisChatfield @linseymarr @CathNoakes @CorsIAQ https://t.co/D5BFqzCRdp In a closed, stagnant air environment, they disappear from the window of view with time constants in the range of 8 to 14 min.
"Highly sensitive laser light scattering observations have revealed that loud speech can emit thousands of oral fluid droplets per second." #whatimreading https://t.co/y2wLBwwJ7K
RT @Mymblemum: @bignagtheory @psychotherapuss @EA_Holmes @trishgreenhalgh Speech droplets are smaller & carry in the air further & are like…
RT @Loretta_Torrago: This matters especially because indoor dining has been implicated in a number of outbreaks (https://t.co/PLROuhqPAe)…
@bignagtheory @psychotherapuss @EA_Holmes @trishgreenhalgh Speech droplets are smaller & carry in the air further & are likely to be more problematic, as speech occurs more frequently than dental activities, music, singing etc and people might assu
RT @Loretta_Torrago: This matters especially because indoor dining has been implicated in a number of outbreaks (https://t.co/PLROuhqPAe)…
RT @Loretta_Torrago: This matters especially because indoor dining has been implicated in a number of outbreaks (https://t.co/PLROuhqPAe)…
RT @Loretta_Torrago: This matters especially because indoor dining has been implicated in a number of outbreaks (https://t.co/PLROuhqPAe)…
RT @Loretta_Torrago: This matters especially because indoor dining has been implicated in a number of outbreaks (https://t.co/PLROuhqPAe)…
RT @Loretta_Torrago: This matters especially because indoor dining has been implicated in a number of outbreaks (https://t.co/PLROuhqPAe)…
RT @Loretta_Torrago: This matters especially because indoor dining has been implicated in a number of outbreaks (https://t.co/PLROuhqPAe)…
Please work harder to keep our kiddos safe at breakfast and lunch. @fcpsnews @FCPSSupt @Keys_Gamarra @AbrarOmeish @RachnaHeizer @LJ4fcps @ElaineTholen @MelanieForEdu @Ricardy4Mason @KarlFrisch @Karen4Schools @stella_pekarsky @njonathan156 @Megan4Schools @K
RT @Loretta_Torrago: This matters especially because indoor dining has been implicated in a number of outbreaks (https://t.co/PLROuhqPAe)…
This matters especially because indoor dining has been implicated in a number of outbreaks (https://t.co/PLROuhqPAe) as has loud talking (https://t.co/lR3e6bESVR) both of which happen in school cafeterias.
@nozkcb @freedomspeaks87 @JackPosobiec https://t.co/31VRtM6nFQ https://t.co/M34gAxeT2S https://t.co/5CKteYIDhH https://t.co/snctdgtk4T https://t.co/shw4S7pxsz How much time do you have? These were just the first results Google found.
@tadesouaiaia @sdbaral @JewishGentle7 @rwgranny @VPrasadMDMPH The 1st is not complex and unknowable. We know masks reduce transmission from mechanistic evidence, see eg https://t.co/usF6rB1QDn Despite Tade's claims, available statistics about mask mandat
@tadesouaiaia @FeiglDingLs @skarlamangla @AlpertReyes https://t.co/ym2MxiVOa2 says "For COVID-19, with an oral fluid average virus RNA load of 7 × 10^6 copies per milliliter... (7), the probability that a 50-μm-diameter droplet, prior to dehydration, conta
RT @FluoridePoison: @MaryanneDemasi @MartinFoleyMP @DanielAndrewsMP @AnnastaciaMP @MarkMcGowanMP @AlboMP @abcnews Having trouble with inter…
@MaryanneDemasi @MartinFoleyMP @DanielAndrewsMP @AnnastaciaMP @MarkMcGowanMP @AlboMP @abcnews Having trouble with internet speed, but try https://t.co/V0dnlww5v9
@DonLyng @ElijahSchaffer @brandi_love Here's new research on tiny droplets and single particle droplets. They exist but are not thought to be as common a transmitter as bigger droplets with many virus particles. https://t.co/szqjIgwby4
@agatyduda @MagorzataKrl5 @wszczeklik DDM wynikał z błędnego założenia że wirus roznosi się drogą kropelkową. Wiadomo że nie i główną drogą jest droga powietrzna. https://t.co/Uw5nk2tZej https://t.co/hrUOw7cXnN https://t.co/vm7WxtiM9L https://t.co/txZ4
@j_seppola @Hilmisdilmis Onhan tuota toki tutkittu. Kovin vakavalta ei uloshengitysilmasta kuivineiden mikrometrin hiukkasten virussisältö (tod.näk 0,01%) kuulosta, mutta määrällinen annos infektioon ei ole vieläkään tiedossa. Potentiaalinen tekijä siis, e
RT @anasanti_mila: Berdasar penelitian, 1 menit berbicara bisa menularkan 1000 butiran kecil aerosol yg mengandung jutaan virus & bertahan…
@MovieRoomBrood @conservatismDNA @newsmax There are multiple sizes of virus particles and the important, large ones that would cause infection are blocked by the mask. 1. https://t.co/Im7GvVvf7q 2. https://t.co/wwKuM1r6IH 3. https://t.co/AUPHjjNzgt 4. http
Berdasar penelitian, 1 menit berbicara bisa menularkan 1000 butiran kecil aerosol yg mengandung jutaan virus & bertahan di udara paling tidak 8 menit: https://t.co/12Hiu5CWrk
@Grzegor16298147 @jan_ziolo I piszesz o chorobach przenoszonych kropelkowo . - Główną drogą transmisji Sars-cov-2 jest droga powietrzna , nie kropelkowa: https://t.co/Uw5nk2tZej https://t.co/hrUOw7cXnN https://t.co/vm7WxtiM9L https://t.co/txZ4Y4zGQw h
@BrianT4liberty @AndyBurnhamGM 10 seconds of googling. https://t.co/JJlSgb11xo. - how virus is spread. https://t.co/HPDLCxLPdF One of a long list of reputable papers with trials and meta studies showing how masks reduce droplet projection and transmissio
@JaneLutner @VNDsRevenge @REGENETARIANISM @michaelshure So I did and found they’re contained in both. What’s this debate about exactly? 1. https://t.co/Im7GvVdDIQ 2. https://t.co/wwKuM19vk7 3. https://t.co/AUPHjk5a81 4.https://t.co/EHipN7SFm8
@Javi04001300 @loqdigalarubia2 No veo la TV. Leo estudios científicos. Como éste: https://t.co/WN7vALmOxj O éste: https://t.co/75tlK8bFMX O éste: https://t.co/WdCNu8oyCp O éste: https://t.co/UMoQeW1wxV Si no sabes inglés, si quieres te los explico. Pe
RT @wolvverinepld: @feline_therian @palka_zapalka @szczepienie @slow_radek @GCessak @szczepimysie Sars-Cov-2 przenosi sie drogą powietrzną…
@feline_therian @palka_zapalka @szczepienie @slow_radek @GCessak @szczepimysie Sars-Cov-2 przenosi sie drogą powietrzną w dużym stopniu nie tylko kropelkową: https://t.co/Uw5nk2tZej https://t.co/hrUOw7cXnN https://t.co/vm7WxtiM9L https://t.co/txZ4Y4zGQ
@Stitch59610520 @cmmorel wrong. https://t.co/lcCMzhk4J7 less virus in the air because they are being blocked by masks both for intake and output helps everyone. look at asian cultures, lower rate of infection in history and well.. with covid... they mask o
@JohnCowboy12 @cmmorel https://t.co/lcCMzhk4J7 less virus present in the air, the less you intake, its the higher viral load dose that makes for more severe illness. limit the amount going out and limit what you take in because everyones masked. well.. co
RT @alfonslopeztena: The airborne lifetime of small speech droplets and their potential importance in SARS-CoV-2 transmission: Only 1 minut…
@HalikRafa A zauważył pan że ta publikacja jest z samego początku 2020 ;) Powoli dojdziemy do 2021 ;) https://t.co/VZs9dNVj7q
RT @Emily_Burns_V: 2/ Comparing the jets of cigarette smoke, in truth, the exhalation would be rocketing past the apparatus. This is refle…
RT @Emily_Burns_V: 2/ Comparing the jets of cigarette smoke, in truth, the exhalation would be rocketing past the apparatus. This is refle…
RT @Emily_Burns_V: 2/ Comparing the jets of cigarette smoke, in truth, the exhalation would be rocketing past the apparatus. This is refle…
RT @Emily_Burns_V: 2/ Comparing the jets of cigarette smoke, in truth, the exhalation would be rocketing past the apparatus. This is refle…
RT @Emily_Burns_V: 2/ Comparing the jets of cigarette smoke, in truth, the exhalation would be rocketing past the apparatus. This is refle…
RT @Emily_Burns_V: 2/ Comparing the jets of cigarette smoke, in truth, the exhalation would be rocketing past the apparatus. This is refle…
RT @Emily_Burns_V: 2/ Comparing the jets of cigarette smoke, in truth, the exhalation would be rocketing past the apparatus. This is refle…
@bato_kastrioti @SorenCicchini @jakekgearhart @enjoythesearch1 @NikosNoulezas @PhilHollowayEsq 4. The airborne lifetime of small speech droplets and their potential importance in SARS-CoV-2 transmission” https://t.co/EHipN8agKI some more visuals of masks
@bato_kastrioti @SorenCicchini @jakekgearhart @enjoythesearch1 @NikosNoulezas @PhilHollowayEsq You do breathe droplets too. You have some very easily-proven-wrong opinions, I really hope you have the scientific mind to be able to change them. Covid is cont
RT @Emily_Burns_V: 2/ Comparing the jets of cigarette smoke, in truth, the exhalation would be rocketing past the apparatus. This is refle…
RT @Emily_Burns_V: 2/ Comparing the jets of cigarette smoke, in truth, the exhalation would be rocketing past the apparatus. This is refle…
RT @Emily_Burns_V: 2/ Comparing the jets of cigarette smoke, in truth, the exhalation would be rocketing past the apparatus. This is refle…
RT @Emily_Burns_V: 2/ Comparing the jets of cigarette smoke, in truth, the exhalation would be rocketing past the apparatus. This is refle…
RT @Emily_Burns_V: 2/ Comparing the jets of cigarette smoke, in truth, the exhalation would be rocketing past the apparatus. This is refle…