Joe Biden has said that he wants every adult in the US to be eligible for a coronavirus vaccine by the beginning of May 1, as he aims to bring the country “closer to normal” by the July 4 holiday.Marking one year since the coronavirus outbreak was defined as a pandemic, the US president said he will be directing states to expand eligibility for vaccinations.Biden’s move is intended to allow Americans to at least gather in small groups for this year’s Independence Day holiday.The severity of