Many developed nations have sufficient resources and sufficient teams for creating coronavirus vaccine - only time is necessary for these teams. It may be that several countries at short time differences will have good and sufficiently tested vaccines. Other problems, connected to COVID-19, have to be attributed to international organizations, politicians, countries' and municipalities' (local) administrations.
Power of supremacy is the major factor which couldn't let some develop countries come together to fashion out lasting solution to the ravaging pandemic. Except there's unity and mutual understanding among so called super power nations, the world may continue to live with this deadly disease called covid 19.