Boris Johnson will host Justin Trudeau and their G7 counterparts for a virtual leaders’ summit today aimed at bringing renewed momentum to COVID-19 vaccine distribution.Johnson will be calling on G7 leaders to increase their funding for the COVAX Facility, which aims to distribute vaccines to poorer countries.Johnson confirmed Britain will be sending all of its surplus vaccines to COVAX, a development that could place Trudeau in a hot seat because Canada is the only G7 country using its membership in the program to get extra vaccines for its own population.The Liberals have been under fire from international organizations and some opposition parties for the decision to accept 1.9 million doses of vaccine from COVAX for domestic use in.