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Is the market going to nosedive further under the attack of new Covid-19 strain?

Indian equity benchmarks plunged on friday with the benchmark S&P BSE Sensex falling more than 1,400 points and the Nifty 50 index dropping below 17,100 on weak global cues after investor sentiment was dented by detection of the B.1.1.529 variant

RBI’s gradualism fires up bulls on Dalal St
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RBI’s gradualism fires up bulls on Dalal St

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Indian equity benchmarks plunged on friday with the benchmark S&P BSE Sensex falling more than 1,400 points and the Nifty 50 index dropping below 17,100 on weak global cues after investor sentiment was dented by detection of the B.1.1.529 variant. News of the variant roiled global markets, with travel-related stocks in Asia among the worst hit.

The B.1.1.529 variant has 50 mutations overall, including more than 30 on the spike protein alone. The spike protein is the target of most current COVID-19 vaccines and is what the virus uses to unlock access to our body's cells. Researchers are still trying to confirm whether this makes it more transmissible or lethal than earlier variants.

There is speculation on the variant's origin, but it may have evolved from a single patient. Francois Balloux, the Director of the London-based UCL Genetics Institute, has suggested it may have come from a chronic infection of an immuno-compromised person, who may possibly be an untreated HIV/AIDS patient.

First identified in South Africa this week, the strain has spread to nearby countries, including Botswana, where fully vaccinated people have been infected. In South Africa over 100 cases have been linked to this variant, with four more in Botswana.

Two cases have been detected in Hong Kong - where travellers (who got the Pfizer jab) from parts of southern Africa were isolated in separate rooms. Samples returned "very high" viral loads, epidemiologist Dr Eric Feigl-Ding tweeted. "PCR Ct values of 18 and 19... insanely high considering they were negative on recent PCR tests," he said.

Because the patients were in separate rooms, there is concern this variant is airborne. " looks like vaccine evasion could be real with this variant... and yes, it is very airborne. Hotel guests were in different room across the hallway. Environmental samples found the virus in 25 of 87 swab across both rooms," Dr Feigl-Ding tweeted.

On Thursday India called for rigorous screening of passengers from South Africa, Botswana and Hong Kong. "This variant has serious public health implications in view of recently relaxed visa restrictions and opening up of international travel," the ministry said. The UK, Singapore and Israel have stopped flights from South Africa, Botswana and four other African nations. Australia may tighten rules for incoming travellers as well.

The World Health Organization has called for caution in the initial stages of dealing with this variant; more research needs to be conducted to understand how B.1.1.529 behaves, the global health body said. Dr Maria Van Kerkhove, WHO's COVID-19 Technical Lead, underlined the importance of ensuring complete vaccination.

Dwaipayan Bhattacharjee
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