Covid-19: Currently reported cases of these three variants in the country, WHO called one of them ‘most dangerous’

Rapidly increasing cases of corona infection are being reported in many countries of the world including China, Japan and America. The news coming from China shows that at present the situation there is much worse. Due to the new variants of Omicron, the number of infections and the crowd of people in hospitals are increasing in the US in the past.

In recent studies, researchers have observed several mutations in the corona virus that make its nature highly contagious. New XBB.1.5 Variant The risk of serious disease is also being seen in the infected. Health experts say, learning from such risks, other countries need to continue taking special precautions and vigilance.

Talking in the context of India, the situation here seems quite controlled at the moment. Infection has been confirmed in 214 new people in the last 24 hours. To prevent infection, the government has intensified the measures of investigation and prevention. According to reports, cases of three variants of corona are currently being seen in the country, the infectivity rate of these three is very high. One of these is also considered to be the most dangerous variant ever.

Let us understand further about the nature and infectivity of these variants.

Seven cases of XBB.1.5 wreaking havoc in America

Infections increased in America these days Omicron’s new sub-variant XBB.1.5 is believed to be dominant, accounting for about 80 percent of cases. An increase in the number of its infected is also being seen in India. According to the Indian SARS-CoV-2 Genomics Consortium (INSACOG), the number of infected with this variant has now increased to seven in India. For the first time in December, its infected was confirmed in Gujarat.

Andrew Pekoz, a virologist at Johns Hopkins University, explains that XBB.1.5 differs from other members of its family because it appears to have an additional mutation that helps it better bind to cells. Its infectivity rate is seen to be very high.

BF.7 variant increasing China’s difficulties

Experts for the devastation of Corona in China Omicron Sub-Variant BF.7 are considered to be the main factors. Its cases have also been seen increasing in India. Recently four new cases of this sub-variant of Omicron have been reported in West Bengal. The researchers found that BF.7 is a mutated form of Omicron’s BA.5.2.1.7 sub-variant, although some mutations appear to increase infectivity and severity.

Experts have been raising concerns about the reproduction rate (R0) of BF.7. While the reproduction rate in the case of delta variant was seen between 5-6, in the case of BF.7 it has increased to close to 10-18. That is, an infected person can transmit the virus to an average of 10 to 18 other people.

Case for XBB variant as well

The XBB variant of Omicron was first seen in India, these days also cases of infected people are being registered in some states of the country. Researchers have described it as a highly contagious variant. This is a variant resulting from the recombination of BA.2.75 and BA.2.10.1. Experts alert about its high infectivity rate and the risks of severe disease in people with weakened immunity.