New Delhi, March 7 -- The national capital has immunised over 86,700 persons in the five days since the Covid-19 vaccination drive was opened up to those above the age of 60 years and those above 45 with comorbidities, but the numbers are too few, say health experts, considering that there are 1.2 million people above the age of 60 years living in the city. They say the drive needs to pick up pace right now if all beneficiaries under this third priority group are to be inoculated anytime soon....