Unvaccinated hospitality staff will now be required to undergo weekly coronavirus tests, said Greece’s Deputy Minister for Civil Protection and Crisis Management Nikos Hardalias said on Thursday during a press briefing. Hardalias said the unvaccinated employees in food and tourism sectors in six regions in Greece – including Mykonos, Santorini and Paros – will have to undergo two coronavirus tests per week as of Saturday. The announcement comes following a sharp spikes in infections in the last week largely attributed to the Delta mutation of the virus which his by far the most contagious. Hardalias said the new rule included the regional units of Mykonos, Rethymno and Iraklio (the latter two on Crete), and the towns proper on the islands of Ios, Thera (Santorini) and Paros.