07.12.2021

What do we know about the Mu variant B.1.621 and is it a cause for concern?

What is the brand-new variant? An unique variant of Covid-19 has actually located its means into the UK with 55 instances up until now determined in England.

Mu (additionally referred to as B. 1.621) is the 5th pressure of coronavirus to be classified by the World Health Organisation (WHO) as a variation of interest.

Where did it originate?

It was first found in Colombia in January 2021, and also is currently specifically common there as well as in neighbouring Ecuador where it is responsible for around 39 per cent as well as 13 percent of infections, specifically.

International occurrence of Mu, on the other hand, remains low amongst sequenced Covid situations at listed below 0.1 per cent yet the variation is starting to make its way over to European countries.

According to WHO, Reports on the variation’s occurrence need to be “interpreted with due consideration” as a result of the low sequencing capacity of several nations.

Is it much more immune to injections?

Public Health England (PHE) claimed in July that there was no evidence to suggest Mu would certainly be most likely to create even more severe disease or make vaccines less effective.

Nevertheless, WHO have because stated that the variation has anomalies, which can make it extra injection resistant than pressures of the infection currently in circulation. They did add nevertheless that further studies will be required to confirm this.

WHO claimed: “Since its first recognition in Colombia in January 2021, there have been a few erratic reports of situations of the Mu variant as well as some bigger outbreaks have actually been reported from other nations in South America and in Europe.

” Although the worldwide frequency of the Mu variant amongst sequenced situations has actually declined as well as is currently below 0.1 percent, the occurrence in Colombia (39 percent) and also Ecuador (13 per cent) has actually continually raised.

” The public health of the Mu variation in South America, particularly with the co-circulation of the Delta variation, will be monitored for adjustments.”

Presently, there are four coronavirus variations of problem in circulation. These are the Alpha variation, seen in 193 countries, Beta in 141, Gamma in 91 and Delta in 170 nations. Mu at the same time, marks the fifth variation of interest.

Over 4,500 sequences have been assigned as Mu in the past 4 weeks, as of 29 August.

Most of these cases have been reported in the US (2,065), Colombia (852 ), Mexico (357) and also Spain (473 ), although the figures will certainly be influenced by both sequencing capability, security and the complete variety of situations in a certain location.

Presently, there are 4 coronavirus variations of problem in blood circulation. These are the Alpha variation, seen in 193 nations, Beta in 141, Gamma in 91 as well as Delta in 170 countries. Mu meanwhile, notes the fifth variation of rate of interest.1

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