BRUSSELS (Reuters) - European Union leaders will agree on Thursday to work on certificates of vaccination for EU citizens who have had an anti-COVID shot, with southern EU countries that depend heavily on tourism desperate to rescue this summer's holiday season.
Lockdowns to slow the pandemic caused the deepest ever economic recession in the 27-nation bloc last year, hitting the south of the EU, where economies are often much more dependent on visitors, disproportionately hard.
