With Half the World Waiting for a First, Are COVID-19 Boosters Ethical?

By Nancy S. Jecker, University of Washington If scientists recommend it, should countries that can afford COVID-19 booster vaccines offer them to their residents? Tedros Adhanom Ghebreyesus, director general of the World Health Organization, made his position clear, calls on countries to impose a moratorium on supporters until 10% of people in each country are …