The World Health Organization has recently expressed concerns that the Delta variant of Covid-19, the variant first detected in India, is reducing the efficacy of the prevailing Covid-19 vaccines within the world. a replacement mutant of the variant has already been found in India, in Maharashtra’s Jalgaon and Ratnagiri, following which the health ministry has asked Maharashtra, Kerala, Madhya Pradesh to be exercise caution.

Covid-19 variants have emerged as an explanation for concern across the planet as experts deliberate on the effectiveness of the vaccines to stop the infection by the variants.

Covaxin and Covishield

Bharat Biotech’s Covaxin vaccine and Serum Institute of India’s Covishield vaccine are effective against the Delta variant of COVID’19, the health ministry has recently said. “Vaccines administered in India, Covishield and Covaxin, (Sputnik recently joined) are effective against Delta variant. But to what extent and what’s the proportion of antibody titers produced by these vaccines are going to be shared soon,” Union health secretary Rajesh Bhushan has said.

Sputnik V

The Russia-made vaccine, which became a neighborhood of India’s vaccination drive, is effective against all variants of Covid known today, Gamaleya Centre head Alexander Gintsburg has said. “Antibodies developed after complete vaccination with Sputnik V will protect from all variants of COVID known today, ranging from the united kingdom variant to the so-called Delta variant, first detected in India,” he said. Sputnik has claimed better protection against new variants which is why its marketer Russian Direct Investment Fund has proposed a booster to other vaccine makers, which can be the third shot after completing the first two doses of vaccines.


Pfizer which is finalizing the agreement in India to provide its vaccines is additionally known to be effective to some extent against Delta variants. But the protection is against hospitalization; the jury remains out over whether it can protect against the infection. A recent analysis done by Public Health England has brought to light that Pfizer and AstraZeneca vaccines offer high protection of over 90% against hospitalization from the Delta variant.

By Manali

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