India has recorded infections with a new strain of the emerging corona virus "Covid-19" called "Delta Plus" - and the letter delta is drawn in two forms, uppercase (Δ) and lowercase (δ) - according to media reports. The risks you may carry, and where in the world did you register?

And "Russia Today" website stated that the Indian state of Maharashtra recorded, on Sunday, 20 cases of the "Delta Plus" strain, describing it as "the world has not known before."

Head of the Office of Medical Education and Research in India, T.

Lahan "We found the Delta Plus strain in the states of Navi Mumbai, Balghar and Ratnagiri."

"We have sent more samples for analysis and are waiting for the results," he added.

A few days ago, virologists in India called for better genome sequencing - that is, examining the sequence of the Corona genome to detect any new strains - after confirming the discovery of another mutation in the delta variant, according to a report in The Independent by Shweta Sharma.

What do we know so far?

And the strain (or variant) Delta Plus is also called “Delta AY.1” and “B161721” (B.1.617.2.1), and this strain allows the “Covid-19” virus with stronger resistance to antibody treatments. The antibody, as it includes the "K417N" mutation, a mutation first found in the "beta variant" that appeared in South Africa.

According to Public Health England (PHE), 63 genomes of the Delta Plus strain have been identified so far by GISAID, a global repository of coronavirus variants.

Where did Corona Delta Plus appear?

From data provided by various laboratories around the world, it appears that the strain has been recorded in Canada, Germany, Russia, Nepal, Switzerland and India, as well as in Poland, Portugal, Japan and the United States.

The oldest sequence of this genome was found in Europe in March of this year.

The Delta Plus strain is not currently largely recorded in India, and most of the gene sequences that have been revealed have been mostly from Europe, Asia and America.

How severe is the disease caused by the strain?

There is still no indication of the severity of the disease caused by the Corona Delta Plus strain, according to The Times of India.

Vinod Skaria, a Delhi-based scientist at CSIR-Institute of Genomics and Integrative Biology, said the new mutation is in the spike protein of the coronavirus, which enables the virus to enter and infect human cells.

He added that understanding this continuous evolution is of great importance in mapping the evolutionary landscape of emerging variables.

To a large extent, the virus attempted to improve transmission and immune escape through the gradual acquisition of new mutations.

He said that one of the important points to note is that the K417N mutation showed resistance to the newly developed monoclonal antibody treatment drugs, which are "Casirivimab" and "Imdevimab".

For his part, epidemiologist and public health expert Chandrakant Lahriya told The Independent that the emergence of "Delta Plus" and other new variants showed the need for regular genome sequencing to track how the Corona virus was progressing.

"We know that the delta variant is 50% to 70% more transmissible than the alpha variant - first identified in Britain - but it is not yet known whether a single major mutation, in this case - K417N - will lead to more portability.”

all mutations

The Independent quoted media statements by virologist Shahid Jamil, in which he said that the "Delta Plus" strain contains all the mutations that make up the Delta strain, in addition to an additional mutation from the South African strain.

"It is indeed a matter of concern, and we must conduct further sequencing to determine its extent in India," he added.

Delta Plus has not been classified as a variable of concern yet.