NEW DELHI : The vaccine against COVID-19 is expected to be available in the coming weeks and with stringent oversight, it is being ensured that there is no compromise on the scientific and regulatory norms, stretching from the safety of the trials to the efficacy of the vaccine, Union Health Minister Harsh Vardhan said on Thursday.Vardhan, who digitally addressed the inter-ministerial meeting on Vaccination of South Asia against COVID-19 by the World Bank here, detailed how by leveraging the existing digital interventions of the Mission Indradhanush immunisation programme, the country is building the advanced CO-WIN digital platform, which will allow citizens to self-register for vaccination, monitor their status and be provided with a QR.