lol you’re the only science denier here.
you’ve just watched a doctor explain the science of the N95, the N99 and tell you that your cloth mask is placebo.
I don't need to do my own study. Your own study found that masks "worn" by naive (i.e. not-infected) hamsters did not significantly reduce the COVID-19 transmission rate: "The use of surgical mask partition to protect naive hamsters reduced the transmission rate to 33.3%, although this did not reach statistical significance." To the best of my knowledge, no study has found that mask wearing (other than N-95 or equivalent) by healthy persons has a significant effect.
Actually I'm an engineer who understands statistics. The only randomized study that I'm aware of tracked over 3000 people and concluded that wearing a mask reduced transmission by 0.3% (basically zero). The number allowed the researchers to conclude at 95% confidence interval that the "real" effect of a mask is between -1.2% to +0.4%. In other words, in the best mask study published (that I'm aware of) the authors concluded with 95% confidence that masks have basically zero effect on transmission, positive or negative. https://www.acpjournals.org/doi/10.7326/M20-6817
I'll ask again: Regardless of your credentials, do you know of any study showing a statistically significant reduction in covid transmission by healthy people wearing a mask?
Hi! I'm a doctor! I've read all the literature on mask-wearing as it pertains to preventing upper respiratory viral infections. None of them had statistically significant results.
Great a Chinese hamster report.
Really persuasive.
lol you’re the only science denier here.
you’ve just watched a doctor explain the science of the N95, the N99 and tell you that your cloth mask is placebo.
I don't need to do my own study. Your own study found that masks "worn" by naive (i.e. not-infected) hamsters did not significantly reduce the COVID-19 transmission rate: "The use of surgical mask partition to protect naive hamsters reduced the transmission rate to 33.3%, although this did not reach statistical significance." To the best of my knowledge, no study has found that mask wearing (other than N-95 or equivalent) by healthy persons has a significant effect.
you're not a doctor. "to the best of your knowledge" means absolutely nothing
Actually I'm an engineer who understands statistics. The only randomized study that I'm aware of tracked over 3000 people and concluded that wearing a mask reduced transmission by 0.3% (basically zero). The number allowed the researchers to conclude at 95% confidence interval that the "real" effect of a mask is between -1.2% to +0.4%. In other words, in the best mask study published (that I'm aware of) the authors concluded with 95% confidence that masks have basically zero effect on transmission, positive or negative. https://www.acpjournals.org/doi/10.7326/M20-6817
I'll ask again: Regardless of your credentials, do you know of any study showing a statistically significant reduction in covid transmission by healthy people wearing a mask?
Hi! I'm a doctor! I've read all the literature on mask-wearing as it pertains to preventing upper respiratory viral infections. None of them had statistically significant results.
His lack of knowledge means that he can't provide evidence to support your claim.
Your study does not constitute evidence.
I'm not going to deny science, but I am going to wait for some.