Vaccine Diplomacy: How COVID-19 Vaccine Distribution in Latin America Increases Trust in Foreign Governments

abstract: Vaccine distribution in the Global South has created opportunities for vaccine-developing countries to improve their international reputations. Leveraging a panel survey conducted in early 2021, this article evaluates whether vaccine diplomacy affects trust in foreign governments in six Latin American countries. Among vaccinated respondents, trust in the government of the country that they believed developed their vaccine increased relative to trust in the governments of other foreign powers. Furthermore, providing information about the aggregate distribution of vaccines within a respondent's country increased vaccine-eligible respondents' trust in the governments of countries from which more vaccines were delivered. In each case, greater trust principally reflects updated perceptions of a common good motivation. The article's empirical findings suggest that vaccine distribution—especially by China, but for other vaccine-developing countries as well—can cultivate favorable international public opinion. These favorable opinions may in turn facilitate great powers' economic, political, or military foreign policy goals.