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The variant Covid-19 omicron seems to spread more than Delta, with milder symptoms, weighing down the action of vaccines, indicated this Sunday the WHO, which stressed that these data are preliminary.
Ómicron was present in 63 countries as of December 9, reported the World Health Organization (WHO) in a technical update that confirms the statements of its officials in recent days.
According to WHO, Omicron It seems to spread faster than the Delta variant, which up to now is responsible for the majority of infections in the world.
This faster advance is not exclusive to South Africa, where Delta is less prevalent, but also in the United Kingdom, where this shape is the dominant one.
But for the moment, the lack of more information makes it impossible to say whether the transmission rate of Omicron It is due to the fact that it manages to circumvent immunity, because its characteristics make it more contagious or a combination of both factors.
The WHO he projected that “Ómicron surpasses Delta in the places where there is community transmission.”
The data are still insufficient to establish the level of severity of the clinical picture that causes Omicron, even if at the moment the symptoms appear to be “mild to moderate” in both southern Africa and Europe.
With regard to vaccines, the few data available suggest that omicron’s genetic profile “lowers efficacy with respect to protection from contagion.”
The manufacturer Pfizer/BioNTech indicated last week that a three-dose vaccination schedule remains “effective” against omicron.
Countries that have the means are encouraging the population to receive a third dose.
This is the case in Europe where there is a new wave of infections caused by the irruption of the delta, the abandonment of prevention measures and the low vaccination rates in some countries.
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