Of covid 19. Joe biden has made tackling the pandemic is first priority. 50 that tackling the pandemic is first priority. So that we can reopen our business is safely and sustainably. Resume our lives and put this pandemic behind us. Donald trump meanwhile is still refusing to concede the election for seven said he has announced the sacking of the defence secretary mark esper, we will talk to Anthony Zurcher about that. Its nice to bring you some good news. A Covid Vaccine has been announced. Pfizer and biontech say first results from their final vaccine trials show theirjab is highly effective in preventing people catching covid 19. Heres pfizers chief scientific officer. There are more steps that need to happen, but we feel that we are on the cusp of one of the biggest medical advances for society and mankind in the 100 years that have passed here. Plenty of caution is needed, but the preliminary results of the vaccines trial are highly promising. Here are the details. Pfizer is a Us