Mumbai, Jan 16 : Exactly 10 months after a 64-year-old man fell the first victim to Covid-19 (March 17), Chief Minister Uddhav Thackeray kicked off the much-anticipated Coronavirus vaccination drive, terming it as "a revolutionary step", here on Saturday. While former Shiv Sena Health Minister Deepak Sawant was administered the first Covishield Vaccine jab at R.N. Cooper Hospital, medico Madhura Patil was given the maiden dose at the Bandra Kurla Complex field hospital, both in their capacity as medical frontline workers. "With this, we have taken a revolutionary step today during the Covid-19 pandemic, the health workers worked cooperated with us in a big way. Even after the vaccination, all Covid-19 precautions must continue to be observed," Thackeray urged. An anxious Patil took the first Covishield vaccine dose amid a huge media glare with Thackeray, Mayor Kishori Pednekar, BMC Commissioner I.S. Chahal, top ministers, civic and medical officials and other invitees standing and watching the process. As a nurse injected the vaccine, without grimacing, Patil managed a smile behind her masked fact and even displayed a 'thumbs up' sign. The drive in Maharashtra - the worst-hit by the Covid-19 pandemic with maximum deaths and infections - started enthusiastically shortly after Prime Minister Narendra Modi inaugurated the national vaccination drive in New Delhi. /IANS