Human rights group said in a new report that US President Joe Biden was expected to outline a pledge at the UN General Assembly to fully vaccinate 70 percent of the world's population by next September
The Australian leader said the planes delivering Pfizer vaccine doses were "on the tarmac" in the UK and would deliver "four million doses of hope" within weeks
The study involved 499 medical workers - 100 receiving mixed doses, 200 taking two doses of the Pfizer/BioNTech shot and the remainder getting two AstraZeneca shots
The drugmaker is also seeking to catch up with Swiss rival Roche, whose Tecentriq is approved in China and many other countries for extensive-stage SCLC
Striking an increasingly exasperated tone, the WHO said the world would look back on itself with shame if it knowingly chose to leave the world's weakest at the mercy of the pandemic.