Joe Biden has warned that a delay in transition by the outgoing Trump administration will put behind the COVID-19 vaccination plan by "weeks or months".In a virtual roundtable with healthcare workers on COVID-19, Biden alleged on Wednesday that his transition team has not been receiving any cooperation from the Trump administration.President Donald Trump has refused to concede the November 3 US election and has filed multiple lawsuits challenging poll results in several States."One of the problems that we're having now is the failure of the administration to recognise - the law says that the General Services Administration has a person who recognises who the winner is and then they have to have access to all the data and information that.