【論文プレプリント】Covid-19パンデミック中の学校閉鎖、バー閉鎖、マスク着用の強い影響：単純で明らかな分析の結果(2020.10.3作成)

Dr. Ali Nouri @AliNouriPhD

NIH STUDY: 3 interventions had the most impact on COVID infections: closing schools, closing bars, wearing masks. Here's Maryland where trajectory of case rate (green) hospitalizations (blue) and death (black) all change with a few days of lag time after closures🧵 1/n pic.twitter.com/PvmjbcY5MG

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Dr. Ali Nouri @AliNouriPhD

Researchers also looked at school closure, alone. Here's Georgia where school closure occurred prior to closing bars and appears to cut the rate of infections (green) in half, beginning 8-14 days post-closure. Rates of hospitalizations (blue) & death (black) also went down (2/n) pic.twitter.com/OGsgV4y29D

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Dr. Ali Nouri @AliNouriPhD

Mask mandates also led to a drop in the rate of infections (green); drops in the rates of hospitalizations (blue); and deaths (black) "Mandating masks is to drop the slopes about 2 fold". Here's New Jersey (3/n) pic.twitter.com/tZSFsFvAea

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Dr. Ali Nouri @AliNouriPhD

They found that post-opening surges seemed to be strongly correlate w/opening bars. Conversely, data suggests the simple combination of closing bars and wearing masks (see Red Arrows) was an effective way to clamp down rates. Here's Arizona (4/n) pic.twitter.com/6kJZncmjmC

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Dr. Ali Nouri @AliNouriPhD

Overall, school closings dropped infection rates in half; lockdowns dropped rates 3 to 4 fold; other actions (such as closing bars & mandating masks) brought the rates further down. Hospitalizations and deaths lagged, but paralleled cases. Preprint: (5/n) medrxiv.org/content/10.110…

内田 @uchida_kawasaki

Strong impact of closing schools, closing bars and wearing masks during the Covid-19 pandemic: results from a simple and revealing analysis | medRxiv medrxiv.org/content/10.110… Covid-19パンデミック中の学校閉鎖、バー閉鎖、マスク着用の強い影響：単純で明らかな分析の結果