Spike protein vaccines effective against Covid variants: IIT study

For the study, the team planned to find out what the response would be like if the post-vaccination infections were caused by a variant other than the original Wuhan strain incorporated in vaccine preparations.

Spike protein vaccines

A team of researchers at the Indian Institute of Technology (IIT) Madras has shown that spike protein vaccines may be effective against multiple variants of Covid-19.

The findings suggested that the attack by selected variants -- Delta plus, Gamma, Zeta, Mink and Omicron -- may be dealt with by vaccine-induced T-cell responses despite the compromised neutralising antibodies responses.