Why is the vaccine taking so long to be developed and given out?
This vaccine has been developed very quickly compared to other vaccines. This is due to the urgency of the global pandemic. However, it has been created in a way that allowed it to be safe and to be studied so that people around the world can be confident in taking it
The next step is distribution. Distribution has some challenges, including shipping, storing (some vaccines need to be kept at remarkably cold temperatures!), and administration. The millions of doses that are needed still need to be manufactured.
Finally, there will be people who do not want to receive the vaccine for various reasons — or who do not want to receive it at first but do end up receiving it later. This delay is a barrier in achieving “herd immunity,” and it may take time and patience to reach a level of 70–80% of the population becoming vaccinated