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Greece to scrap negative COVID test demand for travellers
9 hours ago — Greece will allow tourists with a European vaccination certificate to enter the country without having to show a negative test for COVID-19 ...
SARS-CoV-2 seems to be constantly changing. In the span of just two years, alpha, beta, delta, lambda, mu and omicron have all made headlines. And that list doesn't include dozens of other variants that were detected but not considered high priority by the World Health Organization.