Four cases of Crimean–Congo haemorrhagic fever (CCHF) were reported to The European Surveillance System in 2015. Three of these cases were confirmed. All cases were reported by Bulgaria.

For 2016, two countries reported a total of six cases of Crimean-Congo haemorrhagic fever (CCHF). For the first time, Spain reported two confirmed autochthonous cases. Bulgaria reported the remaining four cases (CCHF is endemic in the Balkan region).

For 2017, Bulgaria reported two confirmed cases of Crimean-Congo haemorrhagic fever (CCHF).