• Shidaowan : world’s first fourth-generation nuclear reactor begins commercial operation on China’s east coast | South China Morning Post
    https://www.scmp.com/news/china/science/article/3244102/shidaowan-worlds-first-4th-generation-nuclear-reactor-begins-commercial-operat

    Reactor at Shidaowan plant in China’s eastern Shandong province is part of global push for safer, more sustainable and efficient nuclear operations
    Joint developer Tsinghua cites ‘inherent safety’, as the ‘core will not melt’ in case of sudden reactor failure or external disturbance

    Pendant ce temps, on répare des cathédrales au plomb comme il y a 2 siècles de cela.

  • China’s new cancer drug Toripalimab is approved in the US but will cost 30 times more | South China Morning Post
    https://www.scmp.com/news/china/science/article/3243209/cocaine-price-hike-chinas-new-cancer-drug-approved-us-will-cost-30-times-more

    A cancer drug developed by Chinese scientists and recently approved by the American Food and Drug Administration (FDA) will cost over 30 times more in the United States than in China, with two other Chinese cancer drugs set to experience similar price bumps in the US market.

    Au temps pour le “développement et recherche” comme explication des prix astronomiques des médicaments.

    Arnaud Bertrand sur X :
    https://twitter.com/RnaudBertrand/status/1729842877772218837

    This case is particularly interesting because high drug prices in the US are always sold to the public as “the cost of innovation”, but obviously in this case the innovation happened in China so it’s pretty crystal clear it’s in fact just Americans getting screwed by their healthcare system ...

  • La Chine a presque achevé son « palais céleste » en orbite autour de la Terre - Numerama
    https://www.numerama.com/sciences/1050108-la-chine-a-presque-acheve-son-palais-celeste-en-orbite-autour-de-l

    La Chine a réussi à connecter le premier laboratoire à sa station spatiale Tiangong. Un deuxième module doit arriver en octobre. Elle sera alors complète.

    Le « palais céleste » a désormais une « salle » de plus. Depuis le 25 juillet, la station spatiale chinoise Tiangong (« palais céleste » en chinois) accueille en effet un module supplémentaire, baptisé Wentian, qui offre aux actuels trois taïkonautes à bord (deux hommes et une femme) un espace plus volumineux pour vivre, mais aussi travailler. Car Wentian joue le rôle de laboratoire dans lequel les différents équipages pourront mener leurs expériences.

    Il a fallu environ treize heures à Wentian pour rejoindre Tiangong, qui orbite autour de la Terre à un peu moins de 400 kilomètres d’altitude. Le module a quitté la Chine le 24 juillet, grâce à une fusée Longue Marche 5 partie de la base de lancement de Wenchang, située dans l’extrême sud du pays, sur l’île de Hainan. Après son périple de plusieurs heures, il a rejoint avec succès le module central de Tiangong, appelé Tianhe.

    Une station spatiale presque achevée
    Avec cette étape, la Chine a désormais presque achevé l’assemblage de Tiangong. Il ne reste plus qu’un module à déployer, qui est en quelque sorte le jumeau de Wentian : Mengtian. Il s’agira là encore d’un laboratoire. Son lancement est prévu pour le mois d’octobre 2022. Les trois taïkonautes actuellement à bord — Cai Xuzhe, Chen Dong et Liu Yang — seront donc les premiers à opérer dans la version finale de la station, leur mission s’achevant en décembre.

    Pour le programme spatial chinois, 2022 restera de facto comme une grande année avec l’achèvement de la station spatiale Tiangong. Si elle reste d’une taille bien plus modeste que l’ISS (Tiangong a des dimensions spatiales semblables à l’ancienne station spatiale soviétique Mir), la structure orbitale constitue une démonstration éclatante des progrès considérables de l’Empire du Milieu dans la conquête spatiale.

    • On notera que la presse occidentale met surtout l’accent sur le retour non contrôlé du lanceur que sur l’avancement de la station spatiale.

      Pour le retour :

      Une fusée chinoise Longue Marche-5B s’est désintégrée au-dessus de l’océan Indien
      https://www.latribune.fr/economie/international/une-fusee-chinoise-longue-marche-5b-s-est-desintegree-au-dessus-de-l-ocean

      Un segment de la fusée spatiale chinoise lancée dimanche dernier a fait son retour non contrôlé dans l’atmosphère ce samedi et s’est désintégré au-dessus de l’océan Indien. Cette fusée n’a pas été conçue pour contrôler sa descente d’orbite. En 2020, des débris d’une autre fusée de ce type s’étaient écrasés sur des villages en Côte d’Ivoire, provoquant des dégâts, mais sans faire de blessés.

      Dans un communiqué publié sur son profil officiel WeChat, l’Agence spatiale chinoise a donné les coordonnées de l’impact : dans la mer de Sulu, à environ 57 kilomètres au large de la côte Est de l’île de Palawan aux Philippines.

      « La plupart de ses dispositifs ont été détruits » pendant la descente, a déclaré l’agence au sujet de la fusée d’appoint, qui a été utilisée dimanche dernier pour lancer le deuxième des trois modules dont la Chine avait besoin pour compléter sa nouvelle station spatiale Tiangong, qui devrait être pleinement opérationnelle d’ici la fin de l’année.

      L’agence spatiale malaisienne a pour sa part dit avoir détecté des débris de la fusée en train de brûler avant de tomber dans la mer de Sulu, au nord-est de l’île de Bornéo.

      « Les débris de la fusée ont pris feu en entrant dans l’espace aérien terrestre et le mouvement des débris en feu a également traversé l’espace aérien malaisien et a pu être détecté dans plusieurs zones, notamment en traversant l’espace aérien autour de l’État du Sarawak », a-t-elle détaillé.

      Uncontrolled Chinese rocket fragments seen in Malaysia : ’We thought it was a shooting star’
      https://www.youtube.com/watch?v=KwnRSQoftjU

    • Pourquoi le chinois est-il la seule langue utilisée dans la station spatiale chinoise ?
      http://french.peopledaily.com.cn/n3/2022/0729/c31357-10129142.html

      […]
      Un autre utilisateur a déclaré : « Les États-Unis ont banni la Chine de la station spatiale "internationale" et maintenant vous vous attendez à ce que la Chine utilise une langue occidentale dans sa propre station spatiale ? »

      « Il n’y a aucune raison pour laquelle le mandarin, ne puisse pas être utilisé en dehors de la Chine, comme l’anglais est utilisé en dehors des pays anglophones », a pour sa part souligné un utilisateur nommé Richard Kerr2815, qui a autrefois travaillé pour Medical Group Business Services à l’Université de Californie.
      […]
      Les discussions animées ont soulevé une autre question : que feraient les astronautes étrangers s’ils voulaient aller dans la station spatiale chinoise ?

      Le développement aérospatial de la Chine est ouvert et inclusif, et la Chine espère que des astronautes étrangers travailleront dans la station spatiale chinoise, a déclaré Qi Faren, membre de l’Académie d’Ingénierie de Chine et premier concepteur en chef du vaisseau spatial Shenzhou, en décembre 2021.

      La semaine dernière, Tricia L. Larose a annoncé sur Twitter qu’elle embarquerait à bord de la station spatiale chinoise pour une mission de 31 jours. Mme Larose et son équipe mettent en œuvre un programme multi-européen de recherche sur les tumeurs, et l’étape finale consiste à tester leur théorie dans la station spatiale. Elle s’entraîne actuellement et devrait monter à bord de la station spatiale en 2025-2026.

    • Canadian cancer scientist hoping for role on China’s Tiangong Space Station | South China Morning Post
      https://www.scmp.com/news/china/science/article/3186816/canadian-cancer-scientist-hoping-role-chinas-tiangong-space


      Tricia Larose has shared images of her spacesuit training online. Photo: Twitter

      • Medical researcher Tricia Larose posted on Twitter that she would ‘happily’ take part in a mission following the launch of the Wentian laboratory module
      • Three years ago her cancer research project was selected as one of the experiments to be carried out in space

      sur l’oiseau bleu
      Dr. Tricia L Larose @TricLarose
      https://twitter.com/TricLarose

  • Coronavirus: eastern Chinese city ramps up zero-Covid strategy with tests every 48 hours | South China Morning Post
    https://www.scmp.com/news/china/science/article/3175954/coronavirus-eastern-chinese-city-ramps-zero-covid-strategy-tests

    Coronavirus: eastern Chinese city ramps up zero-Covid strategy with tests every 48 hours. Hangzhou in Zhejiang province has set up around 6,500 testing stations for residents and visitors. Different strategies to handle outbreaks in Shenzhen and Shanghai cited as shaping vigilant approach and routine testing policy
    China’s city of Hangzhou has adopted a frequent Covid-19 testing routine since Thursday to beat the highly transmissible Omicron variant, in line with the country’s “early detection” goal under its dynamic zero-Covid policy.
    The provincial capital of eastern Zhejiang province and home to 12 million people has set up around 6,500 testing stations for residents and visitors to get PCR tested every 48 hours, according to local authorities.
    From Saturday, residents must show their test results to enter their residential areas, offices, public transport, public venues and schools, it added. Those who enter the city should be tested in the 48 hours before arriving.Shanghai fences in residential buildings to combat Covid-19
    Ying Xumin, deputy director of the Hangzhou health commission, said the frequent testing routine was key to detecting infections as early as possible and minimising the risk of spread in public venues.“Hangzhou faces a severe risk of imported cases [from other parts of the country]. The Labour Day [five-day] holiday is around the corner and there will be more movement of people and gatherings.“We launched the routine testing service to secure the hard-won results of Covid-19 control and maintain the normal operations of businesses and life in the city,” he said, adding that 7.4 million people were tested on Thursday.On Friday, the city reported seven new asymptomatic infections. One was an arrival from outside the city identified at the railway station and the rest were detected within local areas already under isolation.Li Bin, vice-minister of the National Health Commission, said on Friday the country aimed to act fast to beat the rapid transmission of Omicron.“The Omicron variant is highly infectious, transmits quickly and often unnoticed, and causes a high proportion of asymptomatic infections,” Li said. “[We] use both rapid antigen and PCR tests to identify infections as early as possible.”He said all local governments should stick to the dynamic zero-Covid policy and control local outbreaks to avoid infections spilling over to other parts of the country.“If certain places do not resolutely adhere to the policy … it might become the ‘transmitter’ and ‘magnifier’ of outbreaks, causing heavy loss of life and property and seriously affecting economic and social development,” he said.“We encourage local governments to improve precision in Covid-19 control to achieve the greatest results with the least cost.”Beijing’s policy is to contain local outbreaks with strict preventive measures, despite much of the rest of the world embracing a live-with-the-virus mentality.There have been calls from foreign businesses to resume international exchanges and ease pressure on the industrial and services sectors, both hit hard by the tough control measures.China’s insistence on zero-Covid has been controversial as people question the high cost of the social and economic disruption.China’s harsh Covid restrictions leave thousands of migrant workers in limbo. Huang Yanzhong, a senior fellow for global health at the New York-based Council on Foreign Relations, said Hangzhou’s frequent testing routine used PCR tests, instead of at-home rapid antigen tests, so authorities could be sure they knew the test results under a centralised system and could follow up with isolation orders.
    “The country is adjusting its zero-Covid policy, drawing on the experience of Shanghai’s outbreak. The megacity did not act fast enough to nip the crisis in the bud, causing huge social and economic costs.
    “Other places are now learning from Shenzhen which launched mass testing once a few cases were identified to stop the spread as early as possible.
    “That also means all places have to be vigilant and on high alert all the time to prepare for the return of the virus and make testing part of their routine, even if there is no local outbreak,” Huang said, adding that the practice might continue over the next six months, and become more widely adopted nationwide. In March, China approved Covid-19 rapid antigen tests for public use and it adopts a dual testing strategy – both PCR and RAT – for “early detection”. PCR test samples are tested for viral genetic material in a laboratory and results usually take between one day and a few days.

    #Covid-19#migrant#migration#sante#chine#shangai#shenzen#zerocovid#travailleurmigrant#isolement#depistage#economie#globalisation#confinement

  • Coronavirus in China: travel restrictions should continue to avoid a resurgence, researchers say | South China Morning Post
    https://www.scmp.com/news/china/science/article/3166171/coronavirus-china-travel-restrictions-should-continue-avoid

    Coronavirus in China: travel restrictions should continue to avoid a resurgence, researchers say. A key to controlling the pandemic lies in the development and widespread use of vaccines that are more effective in preventing infection, says research paper China’s continuous pursuit of the zero-Covid policy has come under scrutiny for its high social and economic costs
    Chinese researchers said allowing for the movement of people to Covid-zero regions like China would result in 234.2 million infections and 2 million deaths within a year. The key to controlling Covid-19 lies in the development and widespread use of vaccines that are more effective in preventing infection, according to a research paper published in China CDC Weekly, a bulletin of the Chinese Centre for Disease Control and Prevention.
    China has strictly enforced its “zero-Covid” policy with the use of tight border controls and lockdowns as it battles the highly infectious Omicron variant while hosting the Winter Olympics in Beijing.Across China, 45 new local Covid-19 cases were reported on Sunday, a rise from the low of nine cases last week during the Lunar New Year holiday.
    Are Hong Kong’s Covid-19 defences starting to collapse?
    Based on previous studies of vaccine effectiveness against infection in Britain and Chile, the researchers found that the baseline efficacy – indicated by efficacy against infection, against symptomatic disease and against death – was 30 per cent, 68.3 per cent and 86 per cent, respectively.Even if the vaccination rate reached 95 per cent, the paper said, allowing for transregional movement would result in 234.2 million infections and 2 million deaths within a year in unaffected regions.
    “No matter how effective the vaccine was, it could not eliminate Covid-19 in Covid-zero regions, i.e., regions with strong national commitments to suppressing Covid-19 transmission such as China,” according to the report.
    It said nations should continue to develop vaccines and explore new ways to improve vaccine protection against infection to eliminate Covid-19 at the global level.
    The paper also said that a higher level of vaccine protection would be necessary if the goal was to restore population mobility to the pre-Covid level in 2019. To reduce the annual incidence of Covid-19 to that of influenza, the vaccine’s effectiveness against infection and symptomatic disease needs to be increased to no less than 40 per cent and 90 per cent, respectively.The paper said non-pharmaceutical interventions such as travel restrictions and lockdown should be continued to avoid a resurgence of Covid-19. “In any case, resuming international population mobility should be treated with caution to avoid domestic outbreaks,” it said.
    Liang Wannian, the country’s top government adviser on the coronavirus, said in a recent interview with Hong Kong-based Phoenix Television that it was imperative for China to continue its “dynamic zero-Covid” policy through timely and decisive interventions.However, Liang also said the policy could not be permanent, but its implementation should take into account factors such as changes in the epidemic.
    Most countries have decided to “coexist” with the coronavirus to return to normal economic activity and daily living, while China’s continuous pursuit of the zero-Covid policy has come under increasing scrutiny for its high social and economic costs and sustainability.The spread of the Omicron variant will make China’s success in tackling Covid-19 “look more fleeting” and could undermine its efforts to present itself as a global health leader, wrote Yanzhong Huang, a senior fellow for global health at the New York-based Council on Foreign Relations.

    #Covid-19#migrant#migration#chine#sante#zerocovid#circulation#deplacementinterne#mobilite#region

  • Chinese vice-premier calls for tougher action in Henan’s Omicron and Delta coronavirus hotspots | South China Morning Post
    https://www.scmp.com/news/china/science/article/3163098/chinese-vice-premier-calls-tougher-action-henans-omicron-and

    Chinese vice-premier calls for tougher action in Henan’s Omicron and Delta coronavirus hotspots
    Strict prevention and control measures are needed in Henan as it battles the twin threats of the Omicron and Delta coronavirus variants, Chinese Vice-Premier Sun Chunlan said on Tuesday, capping a trip to the central province.Sun said the Omicron strain spread quickly and was highly infectious, putting containment measures in Anyang, now the centre of the province’s main outbreak, to the test, state news agency Xinhua reported.
    “It is necessary to further improve the efficiency of nucleic acid testing and investigations, adopt strict social control measures, block transmission routes as soon as possible, and strictly prevent the spread of the epidemic,” Sun was quoted as saying.Henan reported 118 new local symptomatic cases on Wednesday, up from 87 the day before, according to the National Health Commission.Of those reported on Wednesday, 65 were in Anyang, where the province’s first Omicron case was detected. Meanwhile Xuchang, previously the centre of the province’s outbreak, reported 41 new cases on Wednesday, down from 74 on Tuesday.With the Lunar New Year less than three weeks away, cities in Henan have taken a series of measures to prevent further spread of the disease, including limits on return trips home.
    Authorities in Anyang asked people from the city working in other centres not to return home “unless necessary” during the holiday. Anyang’s 5 million residents have been banned from leaving their homes except to get a Covid-19 test since the first Omicron case was diagnosed on Monday.
    The patient was a university student who arrived from Tianjin on December 28. Anyang’s health bureau said genome sequencing showed that two of the city’s cases involved the Omicron variant but it was not known how many others were related to the strain.And on Wednesday, Anyang-administered Hua county banned its residents from entering residential compounds other than where they lived.Eleven Anyang officials were punished for poor performance combating the outbreak, including at least two who have been suspended.Authorities in Changyuan, also in Henan, said that anyone returning to the city “without permission from relevant departments” would be put under centralised quarantine at their own expense and could be prosecuted.Provincial capital Zhengzhou reported 12 new cases on Wednesday, up from 11 the day before.
    Authorities said on Tuesday that with the exception of various closed and controlled areas, the city had reached “zero social transmission” in three rounds of citywide screening, meaning that all new confirmed cases had been isolated and linked to previously recorded cases.
    Chinese city Yuzhou of over 1 million forced into lockdown with just 3 coronavirus cases recorded
    In her comments on Tuesday, Sun said the situation in Zhengzhou had stabilised but the risk of community transmission had not been completely eliminated in Yuzhou – within Xuchang – where 1 million residents have been in lockdown for more than a week.She said authorities should ensure that residents in locked-down communities had access to supplies and basic medical care, and their demands were resolved in a timely way.
    It follows a flood of public complaints about food shortages and delays in medical treatment in the Shaanxi provincial capital Xian, where 13 million people have been confined to their homes.Chinese province takes on twin coronavirus fronts of Omicron and Delta

    #Covid-19#migrant#migration#chine#sante#omicron#delta#zerocovid#deplacementinterne#confinement#depistage#resident#retour#restrictionsanitaire#controle

  • World scrambles to contain Omicron coronavirus variant | South China Morning Post
    https://www.scmp.com/news/china/science/article/3157621/world-scrambles-contain-omicron-coronavirus-variant

    World scrambles to contain Omicron coronavirus variant
    The emergence of a coronavirus variant with a large number of mutations could pose new challenges for China but too little was known about the strain, according to one of the country’s top respiratory disease specialists.
    Chinese media reported Zhong Nanshan’s assessment of the Omicron variant on Saturday as countries around the world scrambled to contain the variety first found in southern Africa and identified on Friday by the World Health Organization (WHO) as a variant “of concern”.The WHO cautioned countries against “hastily” tightened travel restrictions.
    A number of jurisdictions, from the European Union, to the United States, Hong Kong and Russia, tightened limits on travellers from countries in southern Africa.Dozens of confirmed cases have been identified in South Africa, Hong Kong, Botswana, Belgium and Israel, while suspected cases have been reported in the Czech Republic and Germany.Dutch officials said 61 people on two flights from South Africa to Amsterdam tested positive for Covid-19 on Saturday, but it was not clear if they were infected with the new variant. China did not announce any new travel restrictions in response to the variant but the country has one of the strictest restrictions on border entry and flights. It has also introduced a flight suspension mechanism if there are more than five positive cases on board.
    Sanjaya Senanayake, associate professor of medicine at the Australian National University, said Omicron was troubling because of its high number of mutations. Research indicated that it had 32 spike protein mutations, compared with the 13 to 17 seen in the more prevalent Delta variant.
    “Some of these mutations can increase transmissibility of the variant, while others can help it evade the immune system: a worrying combination,” he told the Australian Science Media Centre. In a post on the website of Imperial College in London, Neil Ferguson, director of the college’s MRC Centre for Global Infectious Disease Analysis, said such a number of mutations in the spike protein gene was “unprecedented”. According to the WHO, early signs indicate an increased risk of reinfection from Omicron compared to other highly transmissible variants – meaning people who have had Covid-19 and recovered could be at greater risk of catching it again with Omicron.The WHO said studies were under way in South Africa and other countries to better understand the variant in terms of transmissibility, severity and any impact on the use of diagnostics, therapeutics and vaccines.US infectious disease chief Anthony Fauci said that while the reports on the new variant threw up a “red flag”, it was possible that vaccines might still work to prevent serious illness.

    #Covid-19#migrant#migration#sante#variant#omicron#circulation#frontiere#monde#OMS

  • Covid-19: China’s Sinovac shots approved by Australia ahead of border opening | South China Morning Post
    https://www.scmp.com/news/china/science/article/3150882/covid-19-chinas-sinovac-shots-approved-australia-ahead-border

    Australia ahead of border opening. The decision to recognise the Chinese vaccine and AstraZeneca’s product will allow foreign travellers and students to enter the country.
    Australia has recognised vaccines made by Sinovac and AstraZeneca, paving the way for overseas travellers and fee-paying foreign students who have received those vaccinations to enter the country. The nation’s top drugs regulator, the Therapeutic Goods Administration, said the shots, made in China and India respectively, should be “recognised vaccines” for incoming travellers, Prime Minister Scott Morrison said on Friday.Australia is starting to unwind some of the world’s most intense pandemic border restrictions
    as vaccination rates across the country approach as key threshold of 80 per cent.Friday’s announcement potentially opens the door to thousands of foreign students that have been shut out of Australia during the pandemic. International education is a lucrative source of revenue for the country, worth A$14.6 billion (US$11 billion) to the state of New South Wales alone in 2019. “Very soon, we’ll be able to open those international borders again,” Morrison told reporters. “This will start happening from next month.”Recognition of Beijing-based Sinovac’s shot, which has been approved by the World Health Organization for emergency use, contrasts with Britain and New Zealand, which are yet to endorse it.A number of European countries have said they will accept the vaccine, known as Coronavac, as part of programmes for vaccinated entry. The US indicated similar when it announced plans to open entry to most vaccinated foreigners last week.Vaccines made by Sinovac and the state-owned Sinopharm are among the most used in China, and have efficacy rates ranging from around 50 to 80 per cent in preventing symptomatic Covid, lower than the mRNA vaccines developed out of the US. Sinovac is also one of the most-deployed Covid shots globally, used from Indonesia to Brazil and Turkey.

    #Covid-19#migrant#migration#australie#sante#vaccination#frontiere#circulation#etudiant#economie

  • Coronavirus: in China, some places are barring the unvaccinated from entry | South China Morning Post
    https://www.scmp.com/news/china/science/article/3140991/coronavirus-china-some-places-are-barring-unvaccinated-entry

    Coronavirus: in China, some places are barring the unvaccinated from entry. Dozens of counties and cities have announced new rules requiring registration and proof of vaccination to go into public venues People who cannot be immunised for medical reasons are exempt, as are those waiting for a second jab or anyone under 18. Dozens of counties and cities across China have begun restricting access to public venues for adults who have not been vaccinated against Covid-19.The new rules mean registration and proof of vaccination will be required to enter places like supermarkets, shopping centres, hospitals, theatres and nursing homes.
    Local authorities in Jiangxi, Shaanxi, Zhejiang, Shandong and Fujian provinces are among those that have announced restrictions this month, according to state media reports.
    China achieved a target of vaccinating 40 per cent of the population
    – or 630 million people – last month, and is on track to meet its goal of inoculating 70 per cent by the end of the year. While officials and health experts have repeatedly urged people to get vaccinated, they have also maintained that it remains voluntary. However, in the places where restrictions are being introduced, people will have to present their phones to show their health and vaccination status – on the app-based health code system that is in use nationwide – before they can go into certain public venues. Some places have said that by the end of July they will “in principle” prevent those who are unvaccinated from entering.
    The city of Hancheng in Shaanxi, northwest China, is one of them. From Thursday, health and vaccination status will be checked before people can enter supermarkets, shopping centres, and cultural and entertainment venues.In the eastern county of Dingnan in Jiangxi, anyone who wants to visit a government agency, go to a hospital, produce market, scenic spot or bookshop will have to show their health and vaccination status. Those who have not had the jab will be denied entry but will be able to arrange a vaccination by registering their details.

    #Covid-19#migrant#migration#chine#vaccination#deplacementineterne#retsrictions#ville#statutvaccinal#sante

  • Israel’s ‘green passports’ plan could lead way in reviving world tourism after Covid-19 vaccination programme is complete | South China Morning Post
    https://www.scmp.com/news/china/science/article/3121046/israels-green-passports-plan-could-lead-way-reviving-world

    Israel is hoping that its world-leading vaccination programme will allow it to resume tourism later this year and is talking to Greece and Cyprus about reopening their borders.The country, which has vaccinated a higher proportion of its citizens than any other, started to issue “green passport” certificates last week that show holders have been given two full doses of the vaccine, one of its diplomats in China said. It is now trying to negotiate reciprocal arrangements with other countries to permit entry to those carrying the certificates.Israel’s experience is likely to be closely watched around the world as it could become the first country to inoculate enough people to reach the ultimate goal of achieving herd immunity.“What we are planning to do is to open a programme of green passports, which means everybody that’s been vaccinated could travel to other countries without the need for being tested before, during the visit or being quarantined after visiting the country,” said Yuval Waks, deputy chief of the Israeli mission in Beijing.He said Greece could be the first country to sign such an agreement with Israel, followed by Cyprus because “it’s also good for their economy” and “tourists from Israel are eager to go”.Waks continued that talks with China were at an early stage and media reports have suggested that countries in Europe such as Serbia and Romania may also take part in the scheme.

    #Covid-19#migrant#migration#israel#sante#tourisme#passeportvaccinal#chypre#grece#frontiere#circulation#economie#serbie#roumanie

  • Coronavirus mutation could threaten the race to develop vaccine | South China Morning Post
    https://www.scmp.com/news/china/science/article/3079678/coronavirus-mutation-threatens-race-develop-vaccine

    A coronavirus strain isolated in India carried a mutation that could upend vaccine development around the globe, according to researchers from Australia and Taiwan.

    The non-peer reviewed study said the change had occurred in part of the spike protein that allows the virus to bind with certain human cells.

    This structure targets cells containing ACE2, an enzyme found in the lungs which also allowed the severe acute respiratory syndrome (Sars) virus to infect people.

    Scientists know more about this receptor than any other so had been working on antibodies that target it, but an unexpected structural change could render them useless.

  • Coronavirus : low antibody levels raise questions about reinfection risk | South China Morning Post
    https://www.scmp.com/news/china/science/article/3078840/coronavirus-low-antibody-levels-raise-questions-about


    Voilà, voilà : comme supputé, il est fort probable que le principe d’#immunité collective était une vaste idée de merde.

    Researchers in Shanghai hope to determine whether some recovered coronavirus patients
    have a higher risk of reinfection after finding surprisingly low levels of Covid-19 antibodies in a number of people discharged from hospital.

    A team from Fudan University analysed blood samples from 175 patients discharged from the Shanghai Public Health Clinical Centre and found that nearly a third had unexpectedly low levels of antibodies.

    In some cases, antibodies could not be detected at all.

    “Whether these patients were at high risk of rebound or reinfection should be explored in further studies,” the team wrote in preliminary research released on Monday on Medrxiv.org, an online platform for preprint papers.

    Although the study was preliminary and not peer-reviewed, it was the world’s first systematic examination of antibody levels in patients who had recovered from Covid-19, the disease caused by the coronavirus, the researchers said.