A heat-stable Covid-19 vaccine that is being developed in India and does not need cold chain storage has generated strong antibody response against coronavirus variants, including Delta and Omicron, according to a study on mice.

from Times of India https://timesofindia.indiatimes.com/india/indias-warm-vaccine-candidate-effective-against-delta-omicron-variants-in-mice-study/articleshow/90878424.cms