Geneva: Omicron Covid-19 variant has been identified in 171 countries, said the World Health Organization (WHO).
In the latest technical briefs, the global health agency said that Omicron was immediately set to replace Delta globally as a result of its immunity.
It stated that Omicron has been found to have significant growth advantages, higher secondary attacks, and the number of reproduction observed higher than Delta.
“On January 20, Omicron variants have been identified in 171 countries.
The variants have quickly surpassed deltas in most countries, encouraging cases in all regions.” Omicron has a substantial advantage of growth over Delta, and it quickly replaces Delta globally, “said Brief.
The global health agency said there was” is significant evidence “to show that immune avoidance contributed to the deployment of the fast eryikron.
However, who said more research continued to better understand the relative intrinsic contribution increased transmission and immune avoidance in explaining transmission dynamics.
Although infection caused by very contagious tension is said to be mild, which said that the current evidence shows that the overall risk associated with omicron remains very high and The spread is much higher than during the previous Covid variant.
Although there is a lower risk of severe illness and death after the infection of the previous SARS-COV-2 variant, the high degree of transmission levels also resulted in a significant increase in hospitalization.
It continues to pose extraordinary demands on the health care system in most countries, and can cause significant morbidity, especially in vulnerable populations, the global health agency said.
Who also found “evidence that the omicron variant infected human bronchial networks faster and more efficiently than Delta”.
However, it has shown the dominance of virus replication in the upper respiratory tract, unlike Delta.
In addition, the technical brief also recorded an increase in the presence of omicron sub-variants.
While the BA.1 lineage previously became the most dominant trend, recently from India, South Africa, England, and Denmark showed that BA.2 increased in proportion, WHO said.
It adds that the transmission driver and other BA.2 properties are being investigated, but it remains unclear to date.
“Studies are needed to better understand the properties of BA.2, including comparative assessment of BA.2 and BA.1 for the main characteristics such as transmission, immune runaway and virulence,” said Brief WHO.