The drug regulator's expert committee on Monday recommended emergency approval to Biological E's Covid vaccine Corbevax for use in adolescents of 12-18 years, a move that is likely to pave the way for the government to lower age eligibility for Covid vaccination to 12 years. The drug regulator's expert committee on Monday recommended emergency approval to Biological E's Covid vaccine Corbevax for use in adolescents of 12-18 years, a move that is likely to pave the way for the government to lower age eligibility for Covid vaccination to 12 years.