Il indique qu’une transmission par aérosol ne peut être exclue dans les milieux clos, alors que ce risque paraît très faible en milieu extérieur ou dans des espaces de gros volume. Il précise les circonstances dans lesquelles le port de masques grand public peut se justifier en complément des mesures barrières, de l’hygiène des mains et de distanciation physique qui restent indispensables.

A Siberian virologist has infected himself with coronavirus for a second time in an experiment to better understand immunity to the virus. Alexander Chepurnov said antibody levels were no longer detectable three months after the first infection, and that his second bout of the disease left him hospitalized
 
He and his research team at the Institute of Clinical and Experimental Medicine, which is part of the Russian Academy of Sciences, then started recording the way his antibodies "behaved," recording how levels in his body changed over time.
 
He then decided to get reinfected to see how his body responded. He did this by spending time with patients with coronavirus, without wearing a mask. Every two weeks he was tested to see if he had been reinfected.
 
Six months after his initial illness, "protection fell," he said. He became ill for a second time, testing positive for the disease. Over the course of the second infection, he was hospitalized. He suffered from a high temperature, lost his sense of smell and X-rays showed pneumonia. "The pain was more severe than the first time," he told Komsomolskaya Pravda.
 
Chepurnov said his own experiment is a warning against a herd immunity approach. He also said it has implications for a vaccine, suggesting multiple doses will be required. As a result, Chepurnov thinks the virus will be with us for many years to come.

A Siberian virologist has infected himself with coronavirus for a second time in an experiment to better understand immunity to the virus. Alexander Chepurnov said antibody levels were no longer detectable three months after the first infection, and that his second bout of the disease left him hospitalized
 
He and his research team at the Institute of Clinical and Experimental Medicine, which is part of the Russian Academy of Sciences, then started recording the way his antibodies "behaved," recording how levels in his body changed over time.
 
He then decided to get reinfected to see how his body responded. He did this by spending time with patients with coronavirus, without wearing a mask. Every two weeks he was tested to see if he had been reinfected.
 
Six months after his initial illness, "protection fell," he said. He became ill for a second time, testing positive for the disease. Over the course of the second infection, he was hospitalized. He suffered from a high temperature, lost his sense of smell and X-rays showed pneumonia. "The pain was more severe than the first time," he told Komsomolskaya Pravda.
 
Chepurnov said his own experiment is a warning against a herd immunity approach. He also said it has implications for a vaccine, suggesting multiple doses will be required. As a result, Chepurnov thinks the virus will be with us for many years to come.

A Siberian virologist has infected himself with coronavirus for a second time in an experiment to better understand immunity to the virus. Alexander Chepurnov said antibody levels were no longer detectable three months after the first infection, and that his second bout of the disease left him hospitalized
 
He and his research team at the Institute of Clinical and Experimental Medicine, which is part of the Russian Academy of Sciences, then started recording the way his antibodies "behaved," recording how levels in his body changed over time.
 
He then decided to get reinfected to see how his body responded. He did this by spending time with patients with coronavirus, without wearing a mask. Every two weeks he was tested to see if he had been reinfected.
 
Six months after his initial illness, "protection fell," he said. He became ill for a second time, testing positive for the disease. Over the course of the second infection, he was hospitalized. He suffered from a high temperature, lost his sense of smell and X-rays showed pneumonia. "The pain was more severe than the first time," he told Komsomolskaya Pravda.
 
Chepurnov said his own experiment is a warning against a herd immunity approach. He also said it has implications for a vaccine, suggesting multiple doses will be required. As a result, Chepurnov thinks the virus will be with us for many years to come.

A Siberian virologist has infected himself with coronavirus for a second time in an experiment to better understand immunity to the virus. Alexander Chepurnov said antibody levels were no longer detectable three months after the first infection, and that his second bout of the disease left him hospitalized
 
He and his research team at the Institute of Clinical and Experimental Medicine, which is part of the Russian Academy of Sciences, then started recording the way his antibodies "behaved," recording how levels in his body changed over time.
 
He then decided to get reinfected to see how his body responded. He did this by spending time with patients with coronavirus, without wearing a mask. Every two weeks he was tested to see if he had been reinfected.
 
Six months after his initial illness, "protection fell," he said. He became ill for a second time, testing positive for the disease. Over the course of the second infection, he was hospitalized. He suffered from a high temperature, lost his sense of smell and X-rays showed pneumonia. "The pain was more severe than the first time," he told Komsomolskaya Pravda.
 
Chepurnov said his own experiment is a warning against a herd immunity approach. He also said it has implications for a vaccine, suggesting multiple doses will be required. As a result, Chepurnov thinks the virus will be with us for many years to come.

Ma grand-mère, catholique de 86 ans : « Ce sont des intégristes qui font ces prières devant les églises. Ce n’est pas un comportement catholique de se donner en spectacle comme ça ! Ils n’ont qu’à regarder la messe à la télé ! »

Ma grand-mère, catholique de 86 ans : « Ce sont des intégristes qui font ces prières devant les églises. Ce n’est pas un comportement catholique de se donner en spectacle comme ça ! Ils n’ont qu’à regarder la messe à la télé ! »

Les pays d’Asie ont développé une stratégie de dépistage et d’isolement pour, précisément, l’éviter. Ils ont réussi. Nous sommes contraints d’y recourir à nouveau parce que nous ne sommes pas parvenus, après le premier confinement à «tester, tracer, isoler, soigner».