Serum Institute, Bharat Biotech to begin trial of intranasal COVID-19 vaccine soon: Vardhan
Serum Institute of India and Bharat Biotech are expected to pursue late-stage clinical trials of intranasal COVID-19 vaccines in the coming months once they receive regulatory approval, Health Minister Dr Harsh Vardhan said on Sunday. Vardhan said the late-stage trial generally involves thousands of participants, sometimes 30,000 to 40,000.