Covid update: A billion vaccine doses; Delhi-Mumbai airfare; Maharashtra cases

From a British drugmaker announcing that it can manufacture a billion vaccine doses in case trials are successful, to Maharashtra crossing the 40,000-mark with respect to total infections - here are the top updates on the Covid-19 pandemic. Total Covid tally in India's financial capital, Mumbai, has crossed the 25,000-mark. In some good news, the Indo-Tibetan Border Police announced that no new case was detected in the force in 24 hours. Meanwhile, two more of film-maker Boney Kapoor's house helps tested positive for the disease. Watch the full video for the other news updates regarding the spread of the Sars-Cov-2 coronavirus.