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Published: 13 July 2021
In an alarming development, several mutant strains of corona virus have emerged around the world, but when the mutated version of the virus becomes a dominant strain in a region or has disturbing features, public health experts name it.
Many mutations show changes in the snapper protein, which the virus uses to cling to and invade human cells.
As such, in some cases different genetic mutations have increased the portability and possibly severity of the disease associated with these particular variables, according to a report published on Live Science.
Noting the most disturbing of these in various areas, the report highlighted the scientific aspect and causes of the Corona variables.
Alpha
According to the World Health Organization, the alpha mutant, formerly called B.1.7, was first observed in the UK in September 2020.
By December 2020, it had appeared in the United States. According to the World Virus Network, it has spread to at least 114 States.
It is responsible for about 95% of new corona infections in the UK. Between May 23 and June 5, 2021, alpha caused about 60% of all cases.
Beta
According to the World Virus Network, this mutant, previously called B.1.351, was first discovered in South Africa in May 2020 and was considered a worrying mutant in December 2020, spread to at least 48 countries and 23 US states, and contains eight distinct mutations that can affect how the virus invades human cells.
The most notable are the mutations of N501Y, K417N and E484K. The N501Y mutation, which also appears in the alpha mutant, allows the corona virus to bind more tightly to the AEC2 receptor.
The K417N mutation can change the form of the snapper protein of the virus, making antibodies fitted to previous strains less likely to recognize the snapper in their new form.
The third observed mutation, E484K, also appears to help avoid antibodies from the immune system, according to the results of a study, published in February in the British Medical Science Journal.
Gamma
As for the gamma mutant, the oldest documented samples, also known as P.1, appeared in Brazil during November 2020, according to WHO data. Scientists first discovered gamma in Japan in early January 2021, when four passengers were found infected with the virus after a trip to Brazil. The researchers then found that the gamma variant was already widespread in Brazil.
According to the UN website, the mutant appeared in 74 countries around the world, was first discovered in the US in January 2021, and spread to at least 30 US states.
Delta
Formerly called B.1.617.2, it first appeared in India in October 2020 and was classified as a worrying variable in May 2021, according to the World Health Organization.
A rapidly spreading mutant was discovered in over 100 countries and quickly became the dominant breed around the world.
Also, Delta is currently replacing the alpha variant in the United States; As of July 6, according to the American Center for Disease Control and Prevention CDC, the delta variant accounts for more than half of all cases in the United States.
ETA
In parallel, the Etta mutant, also known as B.1.525, was observed in the UK and Nigeria in December 2020.
The World Health Organization (WHO) said it was classified as a mutant of importance on March 17, 2021. As of July 9, it has spread to 68 countries around the world.
Iota
The Iota variant, also called B.1.526, first appeared in November 2020 in New York City and was identified as an interesting variable on March 24, 2021.
The Iota variant was discovered in at least 43 countries and all US states. The Iota variant represents 6% of all Serus-Cove-2 sequenced samples in the United States, as data from Stanford University show, while its prevalence is estimated at about 2% of the Corona virus sequence around the world.
Kappa
The Kappa mutant, also called B.1.617.1, was first discovered in India in October 2020, and was identified as an interesting variable on April 4. The Kappa variant has spread to at least 52 countries and 31 US states, according to Stanford University. As of June 24, the Kappa variable was confirmed to account for less than 0.5% of all Saras-Cove-2 sequences analyzed since the Kappa variant appeared.
Lambada
The Lambada mutant, also known as C.37, was first observed in Peru in August 2020. On June 14, the World Health Organization classified C.37 as an interesting global variable, called Lambada.
It has spread to 29 countries, with high levels in South American countries in particular. In recent months, the Lambada variant has been detected in 81% of Cofid-19 cases in Peru, which have undergone genetic sequencing tests, and 31% of similar cases in Chile.