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Despite the immune defenses, the virus quickly mutates
Today, the virus is less virulent adn we have generally resumed the course of our life. For this,we can thank the vaccination campaigns,but also Collective immunity. except that, the covid is still present and far from disappearing.
Too survive in the face of vaccination and collective immunity, the virus is constantly mutating to better adapt to its hosts. And, the variants are more and more contagious, sometimes passing under the immune barriers.Besides, some believe that we are going to live from new waves This summer 2025, and some even speak of a reconfirmation in July. Among the variants, there was for example the Delta variant or the variant omicron, who had really been talked about.But the more the virus spreads, the more it mutates in new variants. And even if other contagious diseases continue to rage in France, COVID remains a major concern. Especially since one of its new variants would cause very annoying symptoms.
COVID NIMBUS worries doctors
Right now, the virus Nimbus is progressing very quickly in the world and in France. More especially its strain NB.1.8.1. This strain is one of the descendants of omicron.Only, this strain seems very contagious and much more painful.
Currently, this variant would have been detected in approximately 22 countries and several cases have been detected in the City of Lyon in France. It was then in May 2025, but the virus continued to progress in June 2025. “A dozen carriers of NB.1.8.1 were detected in France” explains the world.
“In particular in Auvergne-Rhône-Alpes and New Aquitaine. The indicators on the virus, if they remain at very low levels, have been increasing for three weeks “, added the site. And, now, The World Health Institution (WHO) observes it very closely.
The cases are currently treated by the National Reference Center of Lyon, but it could be that several cases have not yet been detected.
At BFMTV, virologist Bruno Lina explains: “There are a number of countries that have reported it. We found a little in France, not much, four sequences that were found, both in the hospital and in town.”
