youtube.com/watch?v=fnrWNiV...
I have just watched this and really can recommend it . It tells the stories of the development of the Covid vaccines. It explains why normally vaccines take a long time to develop and why this has gone so much faster.
It ends on a note of hope that it has changed the world of science R&D - to one of cooperation which can only benefit the world of medicine.
And a bit of additional reading: