The Subject Expert Committee on Covid-19 has granted emergency use approval to Bharat Biotech's Covaxin for children in the 2-18 years age group. Hyderabad-based Bharat Biotech had completed Phase-2 and Phase-3 trials of Covaxin on children below 18 years of age in September and submitted the trial data to the Drugs and Comptroller General of India (DCGI) at the start of this month. Here's how Dr Naresh Trehan reacted to the news.