Scientists in South Africa and around the world are working at pace to discover more about a newly identified strain of the COVID-19 virus. On November 26th the World Health Organization (WHO) designated variant B.1.1.529 as a ‘variant of concern’and named it Omicron.
Why are scientists so concerned about Omicron?Read more ↓
The decision to classify Omicron as a variant of concern was based on evidence presented to the WHO’s Technical Advisory Group on Virus Evolution. This evidence suggested the new variant has several mutations that could impact how easily it spreads, the severity of illness it may cause and, crucially, the effectiveness of existing COVID-19 vaccines. This is what we know so far about Omicron:
Is it transmitted more easily?
The WHO says it’s not yet clear if the Omicron variant is spread from person-to-person more easily than other variants, including Delta. The number of people testing positive for COVID-19 has risen in the area of South Africa where Omicron was first identified. More research is being carried out to determine whether this is due to Omicron, or to other factors.
Does Omicron cause more severe illness?
Early data from South Africa shows the rate of hospitalization is rising among COVID-19 patients. However, there is no evidence so far that directly links infection with Omicron with an increased need for hospital treatment. The WHO says the rise in hospitalizations may be due to a general rise in infection rates. Many of the early Omicron cases reported in South Africa were among students. With other COVID-19 variants, younger people have generally had milder symptoms. There is currently no evidence to suggest Omicron symptoms are different, but it will likely take weeks to determine if Omicron causes more severe illness among the general population.
Will existing COVID-19 vaccines and other treatments work against the Omicron variant?
The WHO says it’s working with partners to understand the potential impact of Omicron variant on the effectiveness of vaccines and other COVID-19 countermeasures. Corticosteroids and IL6 Receptor Blockers will still be effective against severe disease, the WHO advises. As research continues, the WHO is reminding people that vaccines remain effective against other COVID-19 variants – including the dominant Delta strain – and are the best way to avoid severe disease and death…Read more>>