The White House said that the United States would not join a global effort aimed at providing equitable worldwide access to Covid-19 vaccines, citing the project’s link to a “corrupt” World Health Organisation (WHO).More than 170 nations are in talks to join the vaccine initiative, known as Covax, which has already received a €400 million (US$475 million) pledge from the European Commission.The effort is organised by the vaccine alliance Gavi, the Coalition for Epidemic Preparedness Innovations…