Over one crore COVID-19 vaccine doses have been administered in the country till now with the highest single-day vaccinations of more than 6 lakh jabs given on Thursday, the Union Health Ministry said on Friday. Of the 1,04,49,942 doses administered, Joint Secretary in the Union Health Ministry, Mandeep Bhandari, said 70,52,845 vaccine doses were administered to healthcare workers and 33,97,097 to frontline workers whose vaccination started on February 2.