To analyse
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Appeared at the beginning of December, the new variant of Sars-CoV-2 has become largely majority in barely a month. But even if it begins to decline, the previous strain, more virulent, has not disappeared.
One variant can hide another. Causing a surge of new cases, the omicron variant is the focus of much of the attention in the fight against Covid-19. One wonders if he attacks more children. We seek to understand why it is more transmissible than delta. We want to be sure that it causes fewer serious forms. So many crucial questions that should not make us forget its predecessor, delta, which is still firmly present on French territory.
The researcher at the National Institute of Health and Medical Research (Inserm) Vittoria Colizza shared her analyzes of these data during the update on the health situation organized by the ANRS-Emerging Infectious Diseases. The graph below shows the incidence of each variant. If delta seems to have started a slight decline since the beginning of the month, it is still far from having disappeared and…