Novel Coronavirus Expert Meeting


Novel Coronavirus Expert Meeting (新型コロナウイルス感染症対策専門家会議, Shingata Korona Uirusu Kansenshō Taisaku Senmonka Kaigi) is a Japanese advisory body established in the New Coronavirus Infectious Diseases Control Headquarters of the Japanese Cabinet.[1]


  • 1 Background
  • 2 Japan’s Strategy for Covid-19
    • 2.1 Three C’s
    • 2.2 Cluster surveillance
    • 2.3 Changing people’s behavior
  • 3 Criticism
  • 4 The composition of the Expert Meeting
    • 4.1 The chairman
    • 4.2 The deputy chairman
    • 4.3 Members
  • 5 References


It was established on February 14 to advise the Cabinet of Japan from a medical point of view, following the first confirmed Covid-19 death in Japan.[1][2]

Takaji Wakita, Director of the National Institute of Infectious Diseases, chairs the Expert Meeting and Shigeru Omi who was instrumental in SARS measures as director of WHO Regional Office for the Western Pacific and later worked to respond to the 2009 swine flu pandemic in Japan is a vice chairman. The members are composed of Prof. Hitoshi Oshitani, who is the leader of the Cluster Measures Team and remedied the situation in the SARS outbreak as an infectious disease advisor at WHO Regional Office for the Western Pacific, and others.[3][4][5]

Japan’s Strategy for Covid-19[edit]

The aim of the Expert Meeting is to curb the pandemic while maintaining socio-economic activities. If countries around the world repeatedly block the city and lift the blockade every time an outbreak occurs, the global economy and society will collapse. They think that urban blockade is a 19th-century measure, and that there is a 21st-century-type measure to curb the spread of infection by controlling the behavior of people.[3][6]

Vaccine development takes time, and we don’t know if we can actually make a vaccine. Herd immunity cannot be achieved unless a large number of victims are killed and about 70% of the population is infected.[7]

There were three pillars of basic strategy that they chose. (1) Early “cluster crushing” by investigation of mass infection. (2) “Preventing aggravation” by strengthening the medical system. (3) “Changing people’s behavior” to prevent the spread of infection.[7][8]

Three C’s[edit]

The Expert Meeting analyzed the outbreak from Wuhan, which became the first wave of COVID-19 in Japan, and discovered the conditions under which clusters occur, “Three C’s (3密, San Mitsu).” They concluded that most of the primary cases that touched off large clusters were either asymptomatic or had very mild symptoms, and thought it is impossible to stop the emergence of clusters just by testing many people. The first strategy they hammered out was to avoid places of “Three C’s (Closed spaces, Crowded spaces and Close-contact settings).”[3][9][10][11] The main routes of infection were considered to be “contact infection”, which is transmitted by touching a substance to which the virus is attached, and “droplet infection”, which is transmitted by inhaling droplets from a sneeze or cough. However, it has been pointed out that the possibility of “micro droplet infection” is pointed out as a new infection route. A small particle of less than 10 micrometers in diameter containing the virus, a micro-spray floats in the air for 20 minutes, and the infection spreads by people nearby sucking it in.[7]

Cluster surveillance[edit]

One of the features of the measures for the new coronavirus in Japan is the strategy of cluster surveillance. Japan has deterred outbreaks through epidemiological surveys centered on cluster surveillance.[6][4][12]

In early February, Oshitani and Hiroshi Nishiura, a members of the Cluster Measures Team, found that 80% of patients did not infect others with the coronavirus, but certain patients infected many people, by analyzing the data of the first wave from China. The Expert Meeting set their eyes on that, they decided to prevent outbreaks by tracking infected people and testing those who were in close contact with them. 80% of these infected don’t infect anyone with the new coronavirus, so we don’t need to find all the infected. If we can find a cluster, we can control this disease to some extent.[3][4][6][7][13]

If the number of positives is small, it is possible to suppress the spread of infection by tracking the cluster, and it is possible to continue the infectious disease measures while maintaining a constant economic activity.[4]

When the infection rate is very low, the infection will not spread by testing only high-risk people. PCR tests cause false positives, so many tests at low infection rates can even cause false positives to outnumber true positives. They took that strategy with that in mind.[12]

Behind that was the fact that the medical resources in Japan were vulnerable. Unlike other Asian countries, Japan was not well prepared to test for infectious diseases because SARS did not land. The new coronavirus became a designated infectious disease, so those who tested positive were required to be hospitalized even for mild cases, and there were few sickbeds.[4]

However, they also thought that it was a big problem that the number of PCR tests did not increase in the rapid increase of the infected person, and they have gradually increased the number of PCR tests since mid-March.[3][12]

The strategy worked well until mid-March, and it succeeded in preventing the first wave from China, but the second wave via returnees from Europe and the US could not be stopped, and the outbreak occuared in April. That was revealed in May by a genomic molecular epidemiology survey of the new coronavirus (SARS-CoV-2).[3][14]

Changing people’s behavior[edit]

The outbreak occurred in April, and the government declared a “statement of emergency” and asked people to quarantine themselves. The Expert Meeting asked people to “reduce contact between people by 80% more than usual” in order to reduce the rate of increase in the number of infected people and allow cluster surveillance again. They doubted the 80% goal was achieved, but there was fairly extensive voluntary national compliance. Japan’s mild “lockdown” seemed to have a real lockdown effect. When the government lifted the state of emergency in May, they then proposed “new lifestyle” for people.[3][11][15][16][17]


The Expert Meeting and the Abe Cabinet have been exposed to harsh criticism by the Japanese media and their pundits.[18][19][20][21][22][23][24][25][26][27]

Under that influence, Japanese people also cast a stern eye toward the Abe Cabinet. According to a public‐opinion poll by Asahi Shimbun and Mainichi Shimbun in May, the cabinet approval rating has dropped to its lowest level since its inception.[28][29][30]

The Expert Meeting was also subject to criticism. Some people held them accountable for the delay in the measures, the lack of PCR tests, and other factors.[8][19][31]
In question-and-answer sessions at the Upper House Budget Committee, Omi, the deputy chairman, was criticized for the small number of PCR tests and was blamed by Tetsuro Fukuyama, secretary general of the Constitutional Democratic Party of JapanTY for stating that no one knew the actual total number of people infected.[32]

Not only in Japan but also abroad, especially in the US, UK and China, have criticized them.[18][33][34]

There has been a flood of criticism from both home and abroad about the Expert Meeting and the government’s response to the Diamond Princess.[35]

The U.S. and Chinese media developed The Olympics Conspiracy Theory, claiming that the Abe Cabinet took part in the plot to make the number of infected people appear less than the actual number until just before the decision to postpone the Olympics.[23][25][33]
ABC-TV quoted a Japanese professor Koichi Nakano’s contribution as a side note, and wondered, “Why did the number of infected people suddenly increase in Japan as soon as it was postponed?”[18][27]
That was later judged to be fake news by fact-checking in several media.[36][37]

The small number of PCR tests in Japan has been questioned worldwide. CNN, an American pay TV channel, cited interviews with medical personnel Kenji Shibuya and Masahiro Kami, as well as political scientist Koichi Nakano and Japanese Communist Party Rep. Tomoko Tamura, and pointed out that the number of infected people announced by the Japanese government is just the tip of the iceberg and that more tests will need to be actively conducted to accurately grasp the actual situation. The Communist Party’s newspaper, Shimbun Akahata, said that Japan has too few tests compared to other countries, and that it is imperative to expand PCR tests. In Japan, there was even a conspiracy theory that the Expert Meeting had deliberately failed to carry out PCR tests in collusion with the Abe cabinet, and that the National Institute of Infectious Diseases (to which the chair belongs) hindered the expansion of PCR testing in an attempt to monopolize the data.[20][25][34][38]
On the other hand, many infectious disease specialists and clinicians who were familiar with EBM complained about easy expansion of PCR tests through SNS.[38]

Regarding those criticisms, the Expert Meeting said that although the PCR test may produce false positives and false negatives, it is the only test method that can give a definitive diagnosis at the present time, and it should be carried out appropriately when necessary, but it also pointed out that it was not effective to test every person. The Expert Meeting argued that there were no outbreaks in Japan, so few people were missed because of the small number of tests.[7][25]
Deputy Chairman Omi said that Japan has conducted surveillance for pneumonia, so almost all cases of them undergo a CT scan, and most of those would do a PCR test, and that in some cases, those who died at home or died in the streets tested positive after their death, but their system has picked up the right numbers of deaths.
Omi argued that testing a large number of asymptomatic people who were worrier would cause collapse of the medical care system.[8][39][40][41]

Kenji Shibuya, a senior adviser to Tedros Adhanom and a professor at King’s College London in the UK, severely criticizes the Expert Meeting that Japan couldn’t expand the PCR tests because of their old way of thinking about classifying “returnees” and “contacts.”[42][43][44]
Shibuya criticized the Expert Meeting as not independent of the government.[45]
Shibuya was concerned that Japan may have underestimated the number of people infected, as Japan had a low number of PCR tests and selected samples with a high probability of infection in interviews with CNN and the New York Times.[34][46][47]
Shibuya advocates that PCR tests should be carried out to all the people of the country. Shibuya is participating in a national movement that calls in the government to carry out a 100% PCR test for all citizens, which costs 54 trillion yen.[42][43][48]
Shibuya said he didn’t think it would be valid for a nationwide school closure at the end of February.[49]
Using the data from the Institute of Infectious Diseases, Shibuya said, “I can’t say with 100% certainty, but I can see that there was an excess mortality caused by another infection , the new coronavirus, in February.”[50][51]
Shibuya said that the infection status of Japan, which can be read from the data released by the government and Tokyo, was insufficient, and lacked important informations on epidemiology.[51]
Shibuya criticized the timing of the state of emergency as being a week late.[45]
Shibuya predicted that Japan would have to lock down and lifting repeatedly, as the number of seriously ill patients and deaths would increase after June in Japan.[50]

Masahiro Kami, the executive director of Japan’s Medical Governance Research Institute, and an outside director of SBI Pharma Co., Ltd. and SBI Biotech Co., Ltd., complained that the new coronavirus measures should be reviewed from the beginning. Kami said, “The low number of infected people in Japan is due to the limited number of PCR tests. It’s safe to say that there were about a million hidden corona patients.”[34][52][53]
He asserted that the reason why the number of tests did not increase was due to the fact that the National Institute of Infectious Diseases, a research institute of the Ministry of Health, Labour and Welfare controlled the tests.[54]
Kami concludes that Japan’s unsuccessful measures against corona are due to the clinical neglect, research supremacy and confidentiality of Expert Meeting. He traced the roots of members’ alma mater back to before WWII, and he accused them that they are an establishment type who inherited the DNA of the Japanese Imperial Army, and that what they were doing to patients was not a treatment but a human experimentation. He appealed that the only solution would be to renew the current system with personnel.[54][55]

Koichi Nakano, a member of the citizens’ group “Civic Union calling for the Abolition of the Japan-U.S. Security System and The Restoration of Constitutionalism” and a professor at Sophia University, contributed an article to New York Times entitled “Japan Can’t Handle the Coronavirus. Can It Host the Olympics?” In that article, he denounced the Japanese government as incapable of responding to the new coronavirus.[26][27][34]

Yōichi Masuzoe, a former Governor of Tokyo and a political commentator, criticized the prime minister, saying, “No one might call the person who entrusts the judgment to the Expert Meeting which made many mistakes, and the person who is a puppet of the medical association and the governors association to the prime minister of a country. Can’t he hear the voices of the people?”[56]

Hiroshi Mikitani, Chairman and CEO of Rakuten, criticized the weakness of the PCR test system on Twitter, and then tried to launch a PCR test kit for corporations from a company funded by Rakuten. The kit was not approved for medical use and could not be used for definitive diagnosis. He was blamed by the public and announced that he would postpone the sale.[57]

Masayoshi Son, SoftBank Group CEO, proposed free distribution of PCR test kits for one million people, but he gave up mainly due to criticism from medical professionals. The objection to the plan was that the infection spread through the courier when sending the sample, and that it is difficult for non-medical specialists to push a cotton swab deep into a nose to collect a sample. In contrast, Alibaba Group co-founder and then-SoftBank Group director Jack Ma was being thanked for donating 500,000 test kits to the US and Russia. After that, Son provided an antibody test kit for medical institutions and the like free of charge.[58][59][60][61][62]

The composition of the Expert Meeting[edit]

The Expert Meeting is composed of experts in infectious diseases, public health and virology, and lawyer. The standing members are as follows. However, the chairman may request the attendance of other parties as necessary.[1]

The chairman[edit]

  • Takaji Wakita (Director, National Institute of Infectious Diseases)

The deputy chairman[edit]

  • Shigeru Omi (Chairman of the Japan Community Health care Organization,  and President of the Advisory Committee on the Basic Action Policy)


  • Satoshi Kamayachi (Executive Director, Japan Medical Association)
  • Akihiko Kawana (Professor, Department of Medical Education, National Defense Medical College)
  • Yoshihiro Kawaoka (Director, International Research Center for Infectious Diseases, The Institute of Medical Science, University of Tokyo)
  • Kaori Muto (Professor, Institute of Medical Science, University of Tokyo)
  • Hitomi Nakayama (Lawyer, Kasumigaseki-Sogo Law Office)
  • Nobuhiko Okabe (Director, Kawasaki City Institute of Health and Safety)
  • Hitoshi Oshitani (Professor, Graduate School of Medicine, Tohoku University)
  • Motoi Suzuki (Director, Center for Infectious Disease Epidemiology, National Institute of Infectious Diseases)
  • Kazuhiro Tateda (Professor, School of Medicine, Toho University)
  • Masaki Yoshida (Professor, Jikei University School of Medicine)


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  • ^ “アリババ創業者、米国へのマスクと検査キットの寄付を発表”. CNN (in Japanese). 3 March 2020. Retrieved 2 June 2020.
  • ^ “ロシア、マスクと新型コロナ検査キット寄贈のアリババ創業者に謝意”. Reuters (in Japanese). March 27, 2020. Retrieved 2 June 2020.
  • ^ “孫正義氏、新型コロナの抗体検査キットを無償提供 医療機関など向け”. ITmedia NEWS (in Japanese). May 9, 2020. Retrieved 2 June 2020.
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