0423緊急事態宣言
新型コロナウイルス感染症緊急事態宣言がまたもや発令されました。
4都道府県:東京、大阪、兵庫、京都
https://www.mhlw.go.jp/stf/seisakunitsuite/bunya/0000164708_00001.html
また東京、大阪など首都圏では新型コロナ変異ウイルスも多発しています。
2021年4月25日 23時55分更新
国内の発生状況
現在感染者数 54,374 (前日比 +1,572)
新規感染者数 4,605 (前週同曜日比 +513)
累計感染者数 568,502
死亡者数 9,976 (前日比 +51)
退院者数 504,152 (前日比 +2,982)
世界の発生状況
新規感染者数 830,806(前日比 -23,224)
累計感染者数 146,054,107
死亡者数 3,092,410(前日比 +12,940)
回復者数 84,621,824(前日比 +514,527)
https://news.yahoo.co.jp/pages/article/20200207
新型コロナの勢いは、収束する兆しが見えません。
世界的にはワクチン接種が進んでおり、マスクを外して生活できる国もあるようです。
しかし、日本のワクチンは医療従事者と65歳以上の老人に接種が始まったばかりで、イギリス46%に対し1~2%の接種率です。
https://www.businessinsider.jp/post-232472
ワクチン接種は医療従事者は良いとしても、65歳以上老人より首都圏の感染多発地域の人を優先的に接種するのが良いと思います。
また、警察官や消防士、電車やバス運転手など公務を行う人が重要と考えます。
問題解決で言えば重点思考です。
田舎の爺さん、婆さんなど、過疎地で感染しない老人まで一律にワクチン接種するのは無駄でしょう。
ワクチンの数が足りないのであれば、首都圏の65歳以上の老人のみ接種しても良いでしょう。
これは年内衆議院解散が有るため、政府与党が老人票を逃さない為の方策と思われます。
PCR検査で陽性率の高い地域は何らかの原因があるはずで、その問題を要因解析し対策をすれば良いのです。
感染者にヒアリングしても「何処で感染したか分からない」と答える人が多いと聞きますが、その人達の1週間の行動履歴は分かるはずです。
それならば怪しい場所のピックアップは出来ると思います。
ある報道の中で、感染者が「行動履歴からファミレスしか考えられない」と言っていました。
しかし、ファミレスがクラスターと言ったニュースは無かったと思います。
クラスター感染がニュースに出るのは氷山の一角で、ニュースにならない場所が多くあるのかもしれません。
保険所の調査不足か、データを公表していないか、飛沫感染が多い場所は酒場だけでは無いと思います。
スポーツ選手(野球、サッカー、相撲など)の感染がニュースに出たが、感染場所は競技中ではなく更衣室や、洗面所、グループ飲食が原因と思われます。
空気感染と飛沫感染
新型コロナ陽性者の咳、くしゃみ、会話によって飛散する唾液により感染するのであれば、感染者がマスクをするのは当然ですが、
当事者が新型コロナ陽性者の自覚が無い場合が問題です。(感染者の約半数は無症状)
飛沫は会話で2m、くしゃみ咳は数10m浮遊するので、室内換気の悪いところでマスクを外すと浮遊しているウイルスを吸い込み感染する危険性が増します。
居酒屋、レストランなどの飲食店に空調があっても、室内循環空調で室外換気率が悪い店では危険性が高いと言えます。
さらに洗面所、更衣室、個室などは、狭く換気が悪いので密閉空間は危険性が高いといえます。
ゆえに三密(密閉・密集・密接)を避ける。または長時間滞在しないことが感染防止となります。
よって、酒を伴う飲食店の営業時間を9時迄とするよりも、滞在時間を1時間以内とする制限の方が効果的だと思います。
https://www.clinicfor.life/articles/covid-048/
https://www.nobuokakai.ecnet.jp/nakagawa217.pdf
またPCR検査は外国に比べ非常に少ないことが問題です。
PCR検査実施人数
58,221 人(累計 10,794,048 人)
緊急事態宣言をするなら、PCR検査を100%実施率にし陰性証明書を携帯する様にすべきです。
0423 State of emergency
The State of Emergency Declaration for Coronavirus Infectious Diseases has been issued again.
4 prefectures: Tokyo, Osaka, Hyogo, Kyoto
https://www.mhlw.go.jp/stf/seisakunitsuite/bunya/0000164708_00001.html
In addition, new coronaviruses are frequently occurring in metropolitan areas such as Tokyo and Osaka.
Updated at 23:55 on April 25, 2021
Domestic outbreak situation
Currently, the number of infected people is 54,374 (+1,572 compared to the previous day)
Number of newly infected people 4,605 (+513 compared to the same day of the previous week)
Cumulative number of infected people 568,502
Number of fatalities 9,976 (+51 from the previous day)
Number of discharges 504,152 (+2,982 compared to the previous day)
World outbreaks
Number of newly infected people 830,806 (-23,224 compared to the previous day)
Cumulative number of infected people 146,054,107
Number of fatalities 3,092,410 (+12,940 compared to the previous day)
Number of recoverers 84,621,824 (+514,527 compared to the previous day)
https://news.yahoo.co.jp/pages/article/20200207
There are no signs that the momentum of the new Corona will converge.
Vaccination is progressing worldwide, and it seems that some countries can live without masks.
However, Japanese vaccines have just begun to be given to healthcare professionals and elderly people aged 65 and over,
with a vaccination rate of 1-2% compared to 46% in the United Kingdom.
https://www.businessinsider.jp/post-232472
Even if medical staff are good at vaccination,
I think it is better to give priority to people in the infected areas of the metropolitan area over people aged 65 and over.
Also, I think it is important for people who perform public affairs such as police officers, firefighters, train and bus drivers.
Speaking of problem solving, it is important thinking.
It would be useless to uniformly vaccinate old people who are not infected in depopulated areas, such as rural old men and grandmothers.
If the number of vaccines is insufficient, only elderly people aged 65 and over in the metropolitan area may be vaccinated.
This seems to be a measure for the government and the ruling party not to miss the old man's vote due to the dissolution of the House of Representatives this year.
There must be some cause in the area where the positive rate of the PCR test is high, and it is only necessary to analyze the cause of the problem and take countermeasures.
I hear that many people answer "I don't know where they got infected" when they interview infected people, but you should know their weekly behavior history.
Then I think you can pick up a suspicious place.
In one report, an infected person said, "I can only think of family restaurant from my behavior history."
However, I don't think there was any news that Familyless said it was a cluster.
Cluster infections are only in the news at the tip of the iceberg, and there may be many places that aren't in the news.
I don't think that taverns are the only places where there is a lot of droplet infections, such as insufficient surveys by insurance offices or data not being released.
Infection of athletes (baseball, soccer, sumo, etc.) was reported in the news, but the location of the infection is thought to be due to changing rooms, washrooms, and group eating and drinking, not during competition.
Airborne and droplet infections
If the new corona-positive person is infected by coughing, sneezing, or saliva scattered by conversation, it is natural for the infected person to wear a mask.
The problem is that the parties are unaware that they are positive for the new corona. (About half of infected people are asymptomatic)
Droplets float 2m in conversation and sneezing coughs float several tens of meters, so if you remove the mask in a place with poor indoor ventilation, you will inhale the floating virus and increase the risk of infection.
Even if restaurants such as pubs and restaurants have air conditioning, it can be said that there is a high risk in stores with poor outdoor ventilation due to indoor circulation air conditioning.
Furthermore, the washrooms, changing rooms, and private rooms are small and poorly ventilated, so it can be said that closed spaces are highly dangerous.
Therefore, avoid three densities (sealed, dense, close). Or not staying for a long time will prevent infection.
Therefore, I think it is more effective to limit the staying time to 1 hour or less than to limit the business hours of restaurants with alcohol to 9 o'clock.
https://www.clinicfor.life/articles/covid-048/
https://www.nobuokakai.ecnet.jp/nakagawa217.pdf
Another problem is that there are very few PCR tests compared to foreign countries.
Number of people performing PCR tests
58,221 (cumulative 10,794,048)
If you declare a state of emergency, you should carry out a 100% PCR test and carry a negative certificate.