Australia is considering diverting COVID-19 inoculations from its vaccination programme to Papua New Guinea (PNG) where the coronavirus is threatening to unleash a humanitarian disaster.<br />'' <br />''<span style="color: #222222;">A government source said on PNG is due to get 588,000 doses of vaccine by June under the COVAX initiative to help poorer countries but doubts have arisen about those supplies given new restrictions imposed in producing countries as the virus spreads.</span><br />