G7 vaccine pledges to developing countries may fall short   

UK prime minister Boris Johnson with European Commission president Ursula von der Leyen at the G7 summit.

Questions have grown over whether rich nations are pledging anything new in their promises to deliver Covid vaccines to developing countries.               

The G7 plan to donate one billion Covid vaccine doses to poorer countries will have limited impact because it includes some previous pledges, but it still offers a small lifeline to a global vaccine-buying system, some experts said.