Ethical considerations in drug and vaccines development: Pfizer's CEO Daniel Bourla reports

https://scrip.pharmaintelligence.informa.com/SC142447/Pfizers-Bourla-On-COVID-19-Vaccine-There-Is-No-ROI-That-Will-Drive-Our-Decision 

https://www.fiercepharma.com/pharma/bio-what-s-roi-a-covid-19-vaccine-we-have-no-idea-says-pfizer 

https://www.gavi.org/vaccineswork/new-evidence-shows-investments-vaccination-produce-even-greater-returns-previously