Demographic characteristics of 2,688 patients.

*Age was not recorded for 92 patients, while gender was not recorded for 7 patients.** The remaining travelers were from Italy (36), former Yugoslav Republic of Macedonia (30), Finland (29), Sweden (27), Slovenia (26), Ireland (24), Bulgaria (17), Austria (16), Belgium (10), Germany (10), Norway (10), Croatia (11), Switzerland (5), Slovakia (2), Lithuania (2), Australia (1), France (1), Ukraine (2), Brazil (1), Bosnia (1), while relevant data was not recorded from 5 travelers.AbbreviationsSD: standard deviation, y: year, F: female, UK: United Kingdom, SRB: Serbia, HU: Hungary, OR: odds ratio, CI: confidence interval