Buying a coronavirus vaccine for everyone on Earth, storing and shipping it, and giving it safely will all be hard and expensive
- Written by Nicole Hassoun, Professor of Philosophy, Binghamton University, State University of New York

Infectious diseases do not respect borders.
An estimated 3 billion people in low-income countries across Africa, Asia and Latin America are likely to lack access to a COVID-19 vaccine for years after it becomes available. In poor nations, many communities lack the...