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It sounds too good to be true. But a compelling new study and computer model provide fresh evidence for a simple solution to help us emerge from this nightmarish lockdown. The formula? Always social distance in public and, most importantly, wear a mask.
If you’re wondering whether to wear or not to wear, consider this.The day before yesterday, 21 people died of COVID-19 in Japan. In the United States, 2,129 died. Comparing overall death rates for the two countries offers an even starker point of comparison with total U.S. deaths now at a staggering 76,032 and Japan’s fatalities at 577. Japan’s population is about 38% of the U.S., but even adjusting for population, the Japanese death rate is a mere 2% of America’s.
This comes despite Japan having no lockdown, still-active subways, and many businesses that have remained open—reportedly including karaoke bars, although Japanese citizens and industries are practicing social distancing where they can. Nor have the Japanese broadly embraced contact tracing, a practice by which health authorities identify someone who has been infected and then attempt to identify everyone that person might have interacted with—and potentially infected. So how does Japan do it?
“One reason is that nearly everyone there is wearing a mask,” said De Kai, an American computer scientist with joint appointments at UC Berkeley’s International Computer Science Institute and at the Hong Kong University of Science and Technology. He is also the chief architect of an in-depth study, set to be released in the coming days, that suggests that every one of us should be wearing a mask—whether surgical or homemade, scarf or bandana—like they do in Japan and other countries, mostly in East Asia. This formula applies to President Donald Trump and Vice President Mike Pence (occasional mask refuseniks) as well as every other official who routinely interacts with people in public settings. Among the findings of their research paper, which the team plans to submit to a major journal: If 80% of a closed population were to don a mask, COVID-19 infection rates would statistically drop to approximately one twelfth the number of infections—compared to a live-virus population in which no one wore mas
originally posted by: Irishhaf
Gee... and what happened about 2 months ago... these same experts said dont buy masks, dont wear masks they dont do anything.
Seriously I am about done listening to the "experts" they cant make up their minds, same with the models numbers all over the place and they keep trying to influence policy with an every changing set of rules.
originally posted by: TheLead
a reply to: Willtell
The homemade mask most people will be wearing will do very little to mitigate transmission and likely lead to an unptick in staph and other bacterial infections.
Polydisperse aerosol penetrations Average penetration levels for the three different cloth masks were between 74 and 90%, while N95 filter media controls showed 0.12% at 5.5 cm s−1 face velocity (Fig. 1). The penetration levels increased significantly for the N95 control filter media but remained 86% at 5.5 cm s−1 with no significant increase at 16.5 cm s−1 (Fig. 2b). Average penetration levels for the three different model towels and scarves were in the 60–66% and 73–89% ranges, respectively, with no significant increase at 16.5 cm s−1 (Fig. 3a,b). Table 1 shows airflow resistance (in millimeter water) at 5.5 cm s−1 face velocity. In general, the resistance levels were less than or comparable to N95 filter material employed in the study (9.8 ± 0.2 cm water gauge; 1 cm water gauge = 1.33 kPa). A cotton towel model (Pinzon) and a scarf material (Today's Gentleman) showed slightly higher resistance levels than the other fabric materials. Slightly higher airflow resistance levels were obtained at 16.5 cm s−1.