Biden details sweeping effort to vaccinate 100m Americans in 100 days

President-elect calls for huge expansion of federal aid as administration faces array of obstacles to historic project

President-elect Joe Biden has called for a vast expansion of federal aid in order to vaccinate 100 million Americans in his first 100 days in office, an ambitious target set as a new and more transmissible strain of Covid-19 is expected to sweep the country.

Seeking to mount the most complex and logistically challenging vaccination campaign in US history, Biden's administration will have to confront vaccine hesitancy, a burned out healthcare workforce, a lack of clear information on vaccine distribution and demand that far outstrips supply.