Unprecedented attempt to obstruct and delay a smooth transfer of power . More people may die if we dont co ordinate. Light at the end of the tunnel the postponed Tokyo Olympics and paralympics will go ahead, according to the ioc. And in another bitterly contested election, new zealand crowns a chubby parrot bird of the year. Hello, welcome to bbc news. We start with more good news in the search for a covid vaccine. After Clinical Trials in the United States, the firm moderna says its vaccine is almost 95 effective. Its one of around 50 vaccines now being tested on people worldwide, and its success, along with pfizers announced last week, raises hopes that others could also be effective. However, the World Health Organization has warned that with cases surging in europe and the us, now is not the time to be complacent. Our medical editor fergus walsh reports. Another dose of hope and further evidence that vaccines will provide a way out of this pandemic. Thank you. Stunning early result