3 ms·

forgot: here's the paper (it's just mentioned in Japanese in the video) https://journals.asm.org/doi/10.1128/mSphere.00637-20 https://journals.asm.org/doi/10.1

forgot: here's the paper (it's just mentioned in Japanese in the video) https://journals.asm.org/doi/10.1128/mSphere.00637-20 https://journals.asm.org/doi/10.1128/mSphere.00637-20 your controlled experiment with Sars-COV-2 particles :)

timr 5y ago
from the paper (emphasis mine): > Here, we developed an airborne transmission SIMULATOR of infectious SARS-CoV-2-containing droplets/aerosols produced by human respiration and coughs and assessed the transmissibility of the infectious droplets/aerosols and the ability of various types of face masks to block the transmission. Mannequin heads in a box is perhaps evidence of something, but it has little to do with actual humans who don't live in tiny boxes with masks sealed to their real-world faces.
- kgarten 5y ago
  lol ... yes simulations and models are completely useless (wake up: ALL models are wrong, but some are useful). If you cannot come up with a better explanation why masks should not work, you are just somebody who's not accepting the current scientific consensus. So where's your experiment showing the contrary? (With real humans and covid particles?) Where is your evidence? So we have simulations, evidence that it controls community spread, etc. Every expert that I hear speak out says that masks work. Can you find any virologist working in a lab on COVID who claims masks don't work? https://www.pnas.org/content/118/4/e2014564118 https://www.pnas.org/content/118/4/e2014564118 https://jamanetwork.com/journals/jama/fullarticle/2776536 https://jamanetwork.com/journals/jama/fullarticle/2776536 https://pubmed.ncbi.nlm.nih.gov/33431650/ https://pubmed.ncbi.nlm.nih.gov/33431650/
- kgarten 5y ago
  Also they just tested one mask. In HK, Taiwan and Japan a lot of people are wearing 2 masks: 1 surgical mask and a cotton mask on top :) Doesn't help at all (check Taiwan's and HK's numbers compared with Texas ... much higher population density).
- kgarten 5y ago
  we have the controlled experiments, correlations in infections and annectodal evidence in individual incidence: https://www.cdc.gov/mmwr/volumes/70/wr/mm7035e2.htm https://www.cdc.gov/mmwr/volumes/70/wr/mm7035e2.htm what experiment setup that has not been done would convince you? please descirbe it.
- kgarten 5y ago
  https://med.stanford.edu/news/all-news/2021/09/surgical-masks-covid-19.html https://med.stanford.edu/news/all-news/2021/09/surgical-mask... Another one ...

timr 5y ago

from the paper (emphasis mine): > Here, we developed an airborne transmission SIMULATOR of infectious SARS-CoV-2-containing droplets/aerosols produced by human respiration and coughs and assessed the transmissibility of the infectious droplets/aerosols and the ability of various types of face masks to block the transmission. Mannequin heads in a box is perhaps evidence of something, but it has little to do with actual humans who don't live in tiny boxes with masks sealed to their real-world faces.

kgarten 5y ago
lol ... yes simulations and models are completely useless (wake up: ALL models are wrong, but some are useful). If you cannot come up with a better explanation why masks should not work, you are just somebody who's not accepting the current scientific consensus. So where's your experiment showing the contrary? (With real humans and covid particles?) Where is your evidence? So we have simulations, evidence that it controls community spread, etc. Every expert that I hear speak out says that masks work. Can you find any virologist working in a lab on COVID who claims masks don't work? https://www.pnas.org/content/118/4/e2014564118 https://www.pnas.org/content/118/4/e2014564118 https://jamanetwork.com/journals/jama/fullarticle/2776536 https://jamanetwork.com/journals/jama/fullarticle/2776536 https://pubmed.ncbi.nlm.nih.gov/33431650/ https://pubmed.ncbi.nlm.nih.gov/33431650/
kgarten 5y ago
Also they just tested one mask. In HK, Taiwan and Japan a lot of people are wearing 2 masks: 1 surgical mask and a cotton mask on top :) Doesn't help at all (check Taiwan's and HK's numbers compared with Texas ... much higher population density).
kgarten 5y ago
we have the controlled experiments, correlations in infections and annectodal evidence in individual incidence: https://www.cdc.gov/mmwr/volumes/70/wr/mm7035e2.htm https://www.cdc.gov/mmwr/volumes/70/wr/mm7035e2.htm what experiment setup that has not been done would convince you? please descirbe it.
kgarten 5y ago
https://med.stanford.edu/news/all-news/2021/09/surgical-masks-covid-19.html https://med.stanford.edu/news/all-news/2021/09/surgical-mask... Another one ...