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Everything you need to know, Health News, ET HealthWorld

Even when the world is still fighting to contain the damage caused by the Delta, South African scientists have discovered new coronavirus variants that may evade the immune response. The news of the discovery of the new Covid variant has caused a sensation in the global market. Sensex, Nifty, and other global markets are declining amid concerns that the new Covid variant could have a serious impact on the recovery of the global economy.

Here’s what you need to know about the new Covid variant:

variant
This variant, called B.1.1.529, has a “very rare constellation” of mutations. This is because it can help the body avoid the immune response and increase its infectivity.

Turio de Oliveira, South Africa’s genome surveillance network, said the new mutant has a “constellation” of new mutations, tracking the spread of delta mutants in the country.

“The high number of mutations is a predictable antigenic escape and transmissible concern,” said de Oliveira.

This variant reportedly has 32 mutations in the pesplomer. This is part of the virus that most vaccines use to stimulate the immune system against Covid. Peplomer mutations can affect the ability of the virus to infect and spread cells, but they can also make it difficult for immune cells to attack the pathogen.

Where did it come from?
The first surge in Covid cases was observed in Pretoria, South Africa and the surrounding Tsuwane metropolitan area, and appeared to be an outbreak from a group of students at a university in the region. As the number of cases increased, scientists studied genomic sequencing and discovered new mutants.

South African Health Minister Joe Phaahla said the variant was a “serious concern”, behind an “exponential” increase in reported cases and a “major threat”.

This variant has also been found in Botswana and Hong Kong among travelers from South Africa.

How curious are the new variants?
Subspecies are said to be more infected than Delta. It may also be resistant to the Covid vaccine. This new variant B.1.1.529 seems to be spreading very rapidly. In less than two weeks after the devastating delta wave in South Africa, all infectious diseases became dominant.

evolution
B.1.1.529 is likely to have evolved during chronic infections in people with weakened immunity, probably in untreated HIV / AIDS patients, said Francois Balloux, director of the UCL Genetics Institute. South Africa’s efforts to fight the coronavirus pandemic, with 8.2 million people infected with HIV, according to scientists, the most in the world, and people with weakened immunity may have the virus longer. Is complicated. Deolibeira previously stated that the beta mutant, a mutation identified last year in South Africa, could come from HIV-infected individuals.

What should I be careful about next?

The World Health Organization’s Technical Working Group may meet on Friday to evaluate new variants and decide whether to name them from Greek letters.

The concern is that high numbers of mutations can affect the behavior of the virus, “said Maria Van Kerkhove, WHO’s Covid-19 technical lead, Thursday.

“It will take weeks to understand how this variant affects potential vaccines,” she added.

To date, the Delta variant remains the most infectious and has crowded other variants that were once worried. WHO has so far classified alpha, beta, gamma and delta as mutant strains of concern. Lambda and Mu have been designated by WHO as mutant strains of interest.

Much depends on what WHO decides about the new Covid variant at the Friday meeting. Government may decide on travel and border control in response to WHO’s decision to designate B.1.1.529 as a variant of concern or interest.

With the discovery of South African variants, Britain and Israel have already banned all travel from the country and five other trips to South Africa. Authorities are to prevent it from becoming established in the population and spreading rapidly.

What is India doing?
Following multiple cases of the new Covid-19 variant B.1.1529 reported in Botswana, South Africa and Hong Kong, the Center will carry out “rigorous screening and testing” of all international travelers entering and exiting these countries. I requested the state.

“Therefore, all international travelers traveling from and passing through these countries (part of the” risky “country category of international travelers coming to India), and shown in the revised edition. It is imperative to include all other “risk” countries that are. The guidelines for international arrivals issued by the Ministry on November 11, 2021 are subject to rigorous screening and testing in accordance with the guidelines of the Ministry of Health. ” Boushan urged the state to ensure that samples were sent quickly for genomic sequencing.

(There is input from the agency)



Everything you need to know, Health News, ET HealthWorld

Source link Everything you need to know, Health News, ET HealthWorld

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