The Omigron variant of the corona virus responsible for COVID-19 is more prevalent than the delta variant, causing less severe symptoms and less effective vaccines, the WHO said Sunday, stressing that the data is highly fragmented.
Omicron is now in 63 countries, the company said in a technical update, which confirms the reports of its executives in recent days.
According to the WHO, the Omicron delta is spreading faster than the variant, which is currently the cause of most infections in the world. This rapid spread is found only in South Africa, where the delta was low, but also in the United Kingdom, where this variation dominates.
At the moment – due to a lack of data – the WHO does not yet know whether this high rate of transmission of the highly immunocompromised population will prevent Omicron “immunity, benefit from intrinsic over-transmission, or a ‘combination of the two’.
However, the organization predicts that “Omicron will perform better in the delta than in the delta”.
Data are not yet sufficient to establish the severity of the disease caused by Omigran, although at present the symptoms appear to be “mild to moderate” in South Africa, and in South Africa. Where found in Europe.
With regard to anti-Govt vaccines, the limited data available and the genetic profile of Omigran suggest a “decrease in efficacy” in terms of protection against “infection and spread”.
For their part, Pfizer and BioNTech Labs – which developed the Cominarty vaccine, which was by far the most effective against Govit – promised last weekend that it would be “even more effective” after three doses of Omicron.
Most countries that can afford it are already encouraging people to get a booster dose. It faces a new wave of delta-induced infections, particularly in Europe, following the early abandonment of health controls, but sometimes even inadequate vaccination rates.