International trade and investment have always relied on the cross-border mobility of individuals.To contain the spread of COVID-19, many WTO members imposed temporary border closures and travel restrictions. The severe restrictions on cross-border movement are not motivated by trade considerations but by public health reasons. Nevertheless, they have had a significant impact on trade. In several members, initial sweeping travel barriers have been replaced by more fine-tuned policies, aimed at allowing the movement of “essential” foreign workers, or creating “travel bubbles” permitting quarantine-free mobility among partners.