News After Covaxin, Bharat Biotech to now begin trials for intranasal COVID-19 vaccine from Feb-March – India News , Firstpost News Desk January 8, 2021 BBV154 (intranasal COVID-19 vaccine), preclinical testing has been completed for toxicology, immunogenicity and challenge studies. These studies have been conducted in the USA and India Representational image. ANI Buoyed by …