(04/12) Tokyo today about COVID-19 [Fixed Value]



***  This article is written with the help of Google Translate… ***



6,922 (+2,360 from the day before) new infections confirmed in Tokyo.




◆◆◆ Japan ◆◆◆





(Cumulative) * The following is up to 10 worst prefectures.


*( )= increase  from the day before



 (*All of the above from NHK NEWS WEB)



◆◆◆ World ◆◆◆



The number of infected people in Tokyo is …
It’s almost the same number as last week …


For the time being, the “continuous increase record” stopped in 5 days, but …




Meanwhile… How about the amount of people in the city in Tokyo…↓

(Around 15:00 today, Shibuya Scramble Crossing, Tokyo)



Well, I will summarize

the breakdown of the number of new infections in Tokyo + α …!





[N/A] people is
  in 『the entertainment district at night』
  →Employees and guests such as host clubs and cabaret clubs


Infection at home         [1622] people
Infection at office         [-] people
・Infection in the facility    [-] people

Infection by eating out   [-] people
Infection via other routes [-] people


(Individual infection information)

 ・Of the【6,922】 people today, 【3216】 people (46%) seem to have completed both vaccinations …

 ・ The positive rate in the test in Tokyo seems to be 【34.4%】 as of Mar 04



(Red letters are as of January 27, 2022)
*Tokyo currently has 16 facilities for infected people→19 facilities
 (Capacity of 6,240 people)→7976 rooms (5420 people)
 (*Since space for staff and storage space for materials are also required, the number that can be accommodated is smaller than the number secured)


* A hospital in Tokyo has secured 5967 beds (+392 beds→510 beds for critically ill patients).→6919 beds
 → According to national standards, the number of beds for severe cases was 1207. (*Yahoo!)→1468 beds


*The hotels are that,

the b Ikebukuro
Toyoko Inn Shinjuku Kabukicho
Toyoko Inn Tokyo Station Shin-Ohashi-mae
East Tower (Shinagawa Prince Hotel)
Toyoko Inn Fuchu Nanbu Line Minamitama Station
APA Hotel & Resort Nishi-Shinjuku 5-chome Station Tower
Toyoko Inn Ikebukuro North Exit II
In front of APA Hotel Pride Parliament Building
APA Hotel Higashi Shinjuku Kabukicho Tower
Tokyu Stay Takanawa
APA Hotel Shinjuku Gyoenmae
Comfort Hotel Tokyo Higashi Nihonbashi
APA Hotel TKP Nippori Ekimae
Far East Village Hotel Tokyo Ariake
Hotel Gracery Shinjuku
Tokyo Bay Ariake Washington Hotel
Toyoko Inn Haneda Airport 2
Candeo Hotels Ueno Park
Tokyo Pet-accompanied accommodation medical treatment facility


(Discontinued facility)
Day Nice Hotel Tokyo * Ended May 31, 3rd year of Reiwa
APA Hotel Asakusa Taharamachi Ekimae * Ended March 31, 3rd year of Reiwa
Tokyo Toranomon Tokyu REI * Ended March 31, 3rd year of Reiwa
Toyoko Inn Fuchu Nanbu Line Minamitama Station * Ended April 16, 3rd year of Reiwa
APA Hotel Yamanote Otsuka Station Tower * Temporarily suspended
APA Hotel Shinagawa Izumidakeji Ekimae * Temporarily suspended
Hachioji Sky Hotel * Ended October 31, 3rd year of Reiwa
Kichijoji Tokyu REI * Ended January 15, 4th year of Reiwa


 東京都福祉保健局 ※1施設追加|東京都 ※宿泊療養について(施設名一覧あり)
東京で宿泊療養3千人止まり 即時対応難しく – Yahoo!








・Quarantine at the airport passengers arriving at the airport from overseas.

     ↓   ↓   ↓

(↑Please click the image to continue)
From the website of the Ministry of Health, Labor and Welfare

Click here for detailed information on current border measures and isolation period ↓
(*海外安全ホームページ – 外務省)


*Since the number of new infections in Tokyo seems to be almost the number of the previous day,

(Because the deadline for the number of new infections on the day is from 9:00 am the day before to 9:00 am on the day)



And also today, I will summarize some prefectures that have a high number of infected people, not just in the Tokyo area.



*** Saitama ***

New infections are [2541] people (*Max of up to yesterday=7354)


(Individual infection information)

 ・It seems that clusters have been confirmed in a total of [5] locations




*** Kanagawa ***

New infections are [4117] people (*Max of up to yesterday=9097)


(Individual infection information)

 ・It seems that clusters have been confirmed in a total of [8] locations




*** Chiba ***

New infections are [2279] people (*Max of up to yesterday=6604)


(Individual infection information)

 ・It seems that new clusters have been confirmed in a total of  [9] locations




*The following areas introduced until the other day will be excluded for a while.
 ①About “Osaka / Aichi / Okinawa / Hyogo / Kyoto”
   →I have summarized this for the past year, but the details of the infection rarely appear during the day.
 ②About “Hokkaido”
   →Infection is settling down



* In addition, the number of infected people in each prefecture at the present time (19:00) seems to be like this! ↓




*Graph of the number of newly infected people in Japan as of yesterday









<Summary of today’s “Major News Related to COVID-19 in Japan”>




By the way, today I would like to summarize from
“The spread of infection in Shanghai, China, which is reported every day”,
“Is the restriction of going out no longer functioning as a countermeasure?”!


Because, in common sense, it is said that “COVID-19 does not infect by air”, so that is, “if there is no contact between people due to restrictions on going out, the infection cannot spread”, right?


But why does the spread of infection not stop in Shanghai, where it is said that strict restrictions on going out continue?
Even though “That China, where the response to the people should be strict”



First of all, even if the governments of each country restrict their outings, they do not know how long they should be quarantined unless they know “how long the virus will lose its ability to transmit from person to person” , right…?


So I looked it up!


… But unfortunately, there was no good result when I looked it up… (dry laugh)


Basically, only those that describe “incubation period” = “period until onset”

Ex) Mainichi Shimbun article

(Graph about incubation period / Top: Alpha variant / Bottom: Omicron variant)

↑According to this,

From infection with Omicron variant to onset
Average 2.9 days(*Delta variant is 3.4 days)
People who develop the disease by the 10th day after infection = 99.18%

it is said above, but this isn’t what we want to know …


Now, how many days after infection does the virus completely lose its infectivity …?


The keyword seems to be “generation time” …!


“generation time” ・・・ Time to cause secondary infection
(*Secondary infection = time from infection to another person)

(*新型コロナ、感染の「世代時間」ってどういう意味? – 中日新聞LINKED地域医療ソーシャルNEWS)


After all, there was no article about the maximum number of days for this “generation time”, but I found that it averaged 2.1 days for Omicron variant!


<About the generation time of Omicron variant>

Delta variant generation time = 5 days on average
Omicron variant generation time = 2 days on average


*If one person infects two people on average,
Omicron variant will infect eight people while the Delta variant infects two people ↓

(オミクロン株を他者にうつす期間、発症2日前から当日にかけてが9割 福井県の新型コロナ感染 – 福井新聞)
(*新型コロナ、感染の「世代時間」ってどういう意味? – 中日新聞LINKED地域医療ソーシャルNEWS)
(新型コロナくらし情報 オミクロン株の特徴 急増要因はうつるスピード 約2日で人から人へ – 毎日新聞)



By the way, about “Why do they not know the maximum number of days of COVID-19 generation time?”,  as you can see in this document from the Ministry of Health, Labor and Welfare,

they seems to say that “the cycle of infection is too short and it doesn’t mean to check it anymore, so I don’t check it in the first place!” … ↓


= “I can’t keep up with the close contacts (infection route), so I’ll stop investigating anymore.”

(*オミクロン株感染蔓延期における「濃厚接触者」に関する作戦転換(PDF) – 厚生労働省)


So, I would like to proceed on the premise that “no one knows how many days should be isolated for Omicron strains anymore” …!
(* When I saw the materials of the ministries and subcommittees, there was no mention of them.)


…The introduction has become too long… (dry laugh)
It’s been pretty halfway, but I think everyone is tired of reading, so I’ll continue in this “topic section” tomorrow …! (dry laugh)





↓ In addition, there was such an article! ↓






And this article↓


How long time the materials such as paper, cloth, plastic, etc. need to eliminating the risk when coronavirus is attached, and how effective disinfection is.
If you are interested, please take a look!




And here’s a trial calculation of how many people in Japan are actually receiving medical treatment.

(If it is exactly as announced)

For those who are undergoing medical treatment nationwide are…
It’s increasing every day, but there are days when it’s decreasing …!





Well, tomorrow I would like to summarize the main subject, “Why does the spread of infection not stop at all even though there are strict restrictions on going out in Shanghai, China” based on several articles!


Maybe … as you expected … (dry laugh)









Please be careful when you go out!










Changes in New Coronavirus Infection in Tokyo


Sun Mon Tue Wed Thu Fri Sat Total
14445 21576 20679 19798 21122 125266
17526 12211 17113 18287 18891 18660 11765 114453
13074 10334 15525 17331 17864 16129 13516 103773
12935 8805 11443 14567 10169 11125 11562 80606
10321 9632
Sun Mon Tue Wed Thu Fri Sat Total
11813 12693 12251 10517 10806 78033
9289 5374 8925 10823 10080 8464 9164 62119
8131 4836 7836 10221 8461 7825 7444 54754
6502 3855 3533 6430 8875 7289 7440 43924
7844 4544 7846 9520 8226
Sun Mon Tue Wed Thu Fri Sat Total
7982 7395 53357
7899 4384 6968 8652 8753 8112 8102 52870
8026 4562 6922

 *Unit: person (number of infected people on that day)