Closing vaccine borders provides a false sense of security. Enabling global flows allows vaccine supply chains to deliver more vaccines to all. International Co-operation Tackling COVID-19 Competition Health COVID-19 Crisis, Equal Opportunities, Health & Well-being Closing vaccine borders provides a false sense of security. Enabling global flows allows vaccine supply chains to deliver more vaccines to all. +1 Prashant Yadav and 1 other Mar 22, 2021