COVID variants have emerged. Considering all these facts, many are of the view that it is high time to start thinking about a ‘next-gneration’ vaccine.
World Health Organisation ( WHO) has pointed out that currently, there are over 500 variant Omicron variants circulating worldwide and, with every mutation, the coronavirus is getting much fitter.
So, there is a high chance that the vaccines that are in use now might become less effective over time. This could be especially problematic if a new variant emerges that is much more transmissible or deadly than the current ones. “Of course, the Omicron variants are not causing severe infections but what if, Delta is still lurking somewhere and a new sublineage mutates from it," said Prof.
Kiran Kondabagil, Chief Scientific Mentor, HaystackAnalytics and Professor, Department of Biosciences and Bio-engineering, IIT Bombay At the same time, making a second-generation vaccine is a challenge considering the sheer number of variants that are now circulating around the world, acknowledges Kondabagil. “When the first vaccines were developed in 2019, there was only one strain of the virus to worry about.