The beginning of the new year has brought with it some hope as different countries have started administering vaccinations against COVID-19. This has been the fastest development of a vaccine ever, with a number of research collaborations to make this feat possible. But many challenges also remain.
COVID-19 vaccines: Differences, costs, and challenges
The COVID-19 pandemic saw the fastest development of a vaccine ever, with a number of research collaborations making this feat possible. But many challenges also remain