A new variant of Covid-19, named é KP.3, spreads quickly. It is particularly closely followed in the United States where there is fear of a summer wave of contagion.
L'été arrived and if the weather is &agrav; Preparing for the holidays, an old enemy, Covid-19, is remembered again and again. us. If the number of cases is rather stable in France, a new variant is being monitored. up close by the community international scientist. One country in particular is alert to its presence and rapid development, the United States, a country very popular with foreigners. by the French for the summer holidays.
Là low, the KP.3 variant has developed; very quickly in recent weeks to the point of becoming the dominant strain and threatening to develop in Europe, via the air route. the approach of the holidays or the Olympic Games Paris. If the situation is particularly followed in the United States, Europe is not in control. the shelter. Scientists fear that the virus has already been infected. through&eac; the Atlantic, probably traveling by plane with the flow of tourists.
In France, the KP.3 variant has already become widespread. été identified and has been followed since April but Santé Public France ensures that it "circulates & low levels". Detect initially in American wastewater, the KP.3 variant has a precise origin that is still unknown. But one thing is sure, it spreads widely. an alarming speed across the Atlantic. Since the beginning of June, KP.3 has already been in full swing. has become the dominant variant in the United States, representing 25% of Covid-19 cases according to data from the CDC (Center for Control and Control). and disease prevention). He was destroyed. the previously dominant variant, JN.1, from which it originated.
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KP.3 differs from JN.1 only by two mutations in the spike protein. But these mutations are important. One of them, called F456L, allows the virus to attach more easily to your body. our ACE2 receptors, thus increasing its infectivity. This explains its rapid spread, allowing it to gain the upper hand over other variants in circulation such as KP.2, the previous variant that appeared in the spring.
Good news, experts indicate that KP.3 does not seem to cause very different symptoms from previous variants but they do emphasize that it will be necessary to remain vigilant regarding a possible evolution of the disease. Despite a significant drop in deaths and hospitalizations linked to Covid, the latest data from the CDC thus show a slight increase in positive tests (+0.4%) and visits to emergency rooms (+16.2%) in the United States during the week of June 10 compared to the previous year. the previous week.
Weak signals but which will need to be monitored closely. Because what many experts fear is a potential "summer wave" caused by KP.3 and its descendant already identified, KP.3.1.1. This sub-variant could spread even more quickly and spoil the vacations of many tourists. On June 10, Santé Publique France noted that KP.2, the previous and closest strain, “raises” questions due to its rapid spread in certain countries (including the France) and its genetic profile.
The instance also pointed out that it "seems to have an exhaust gain' immunity but a reduction in its infectivity, thus potentially limiting its diffusion and its severity. Face à This threat and if you have planned to travel this summer, vigilance may therefore be required, especially if symptoms appear Mild but common symptoms with Covid-19 infection, such as fever, cough, fatigue, or headache. te.