NEW DELHI/BHUBANESWAR : India appealed to frontline workers on Tuesday not to refuse vaccines for COVID-19, after almost all states failed to meet their targets in the first few days of one of the world's biggest immunisation campaigns.The country has so far vaccinated 631,417 frontline workers with two shots manufactured locally, one developed by Oxford University and AstraZeneca, and another developed at home by Bharat Biotech in partnership with the state-run India Council of Medical Research.The programme started on Saturday, with 30 million healthcare and other front-line workers first in the queue.The health ministry said India inoculated more people on its first day than the United States, Britain and France did.