Croatia has long been one of the most popular summer destinations for Czech tourists. The Ministry of Health stated on Twitter today that it now records numerous cases of covid-19 among participants in mass events during their holidays in Croatia. On Friday, therefore, he advised these people to be cautious when returning to the Czech Republic, to avoid mass actions and to keep a safe distance from others. They should monitor their health and contact a doctor by phone immediately in case of symptoms, the ministry advises. They also recommend frequent hand washing and the use of disinfectant and sneezing in a disposable handkerchief or sleeve.