Despite the availability of data on 1.6 lakh healthcare and 1.9 lakh frontline workers, the BMC is struggling to administer COVID-19 vaccines at full capacity due to technical glitches in the CoWIN app. These errors now pose a bigger challenge for the corporation as the Centre on Wednesday announced vaccination for everyone aged above 60 and citizens who are 45-plus and have comorbidities from March 1.
 
The city has more than 30 lakh senior citizens and the number of people with comorbidities is uncertain. The unavailability of data will create a hurdle in enrolling them for vaccination. Meanwhile, the BMC is waiting for specifications on comorbidities.

Until now, out of 1.6 lakh healthcare workers, 1.03 lakh have taken their first dose and 13,754 their second dose. Out of 1.9 lakh frontline workers, 83,241 have received their first dose. On Wednesday, 9,830 people received vaccines, i.e. 91 per cent of the BMC's total target. More than one-third of them are health workers who have taken their second dose. KEM, Sion, Bandra-Bhabha, Rajawadi hospitals saw more health workers coming for the second dose. A total of 6,461 received their first dose, including 5,265 frontline and 1,196 health workers.