Bill Gates has an article on What you need to know about the COVID-19 vaccine The entire article is impressive in terms of the approach to solve this problem. The particular highlight for me was Bill Gate's emphasis on making sure everyone in this world, yes 7 billion people in this world get the vaccine as soon as it is available.
This is an impressive thinking for a individual. Considering the solution for the entire humanrace, because no human is different and is equally susceptible to this virus.
7 billion doses
We need to manufacture and distribute at least 7 billion doses of the vaccine.