Booster Vaccine May Be Needed Against Future Covid Strains: AIIMS Ex Chief

The Covid vaccines in use in India are providing cover for the original Wuhan strain, but if the need for another booster dose is felt as new variants emerge, it should be able to provide protection against all circulating as well as future strains, according to former AIIMS director Randeep Guleria. He stressed on the need for two data sets - first to ascertain whether the degree of immunity is waning and if the vaccines need to be tweaked. He said this in response to whether it is time for another precaution dose almost a year after the first one amid the recent uptick in Covid cases. (Video credit: PTI)