The data shows that in the past four weeks, subtype 2 has become dominant in many southern states, replacing other strains. According to epidemiologists, this rapid increase indicates that the virus is more likely to spread.
The variants of the Indian coronavirus may also be more contagious than the English variants. The latest sequencing data shows this.India, Within a few weeks, one of three subtypes named B.1.617.2 was detected, replacing other strains in circulation.
Indian variants outperform other strains
In the past four weeks, the sub-cluster has become the dominant group in many Asian states (including Karnataka). The spread of the country, coupled with the relaxation of law enforcement measures and the increase in social interaction, is promoting a The terrible pandemic waved Epidemiologists now estimate it to be unreasonable Increase the spread rate by 60% The British variety B.1.1.7 is 50% more infectious than the original strain. If this data is confirmed, it will be a mutated version of Sars-Cov-2, which is easier to spread than all mutated versions that have appeared so far.
Popularity of Indian variants
Data related to variant B.1.617.2 in the Gisaid database (Above, magenta), highlighting the rapid growth of strains, indicating a higher transmission capacity. There is also a phenomenon in the UK in which variants are well monitored and gene sequencing is well structured.Within a week, the situation of B.1.617.2 From 202 to 520, Of which nearly half are related to travel or contact with travelers.According to evidence from Public Health England (PHE), this variant exists “At least as spreadable as B.1.1.7 -We read in the latest report of the UK agency, which stated:Other features of this variant are still under study“. European Center for Disease Control and Prevention (ECDC) Recorded growth The detection frequency in the latest threat assessment documents of EU and EEA countries/regions.
However, at present, there is no conclusive research showing that this variant will cause more serious diseases or become resistant to vaccines.According to the World Health Organization’s classification of the original Indian variant (B.1.617) as a VOC (English abbreviation for variant of concern (variant of concern)) last Monday, there are some elements that indicate partial immune escape, which involves Some evidence laboratory.
Further research published in the preprint BioRxiv This possibility was confirmed again, indicating that the neutralizing ability of the antibodies present in the plasma of the recovered plasma (including those receiving the Indian vaccine Covaxin) is similar to that observed for the high variant of interest. Other experts worry that this variant may develop further, surpassing the three different subtypes (B.1.617.1, B.1.617.2, and B.1.617.3) that have already appeared, and have differences from the original variant. Mutation characteristics. The first B.1.617.1, originally found in India in December, peaked in late March, and then dropped in April. The subtype B.1.617.2 is the dominant subtype in India and is also spreading rapidly in Europe, while the second subtype was discovered in India in February and is still rare.