Overview

• Travel Health Pro issued a travel health alert for tourists to Salamanca after local officials confirmed a CCHF infection via tick bite on May 28, 2025.
• Crimean-Congo haemorrhagic fever can range from no symptoms or mild flu-like illness to severe haemorrhage, multi-organ failure and shock, with a case fatality rate of up to 40%.
• Early in 2025, the UK Health Security Agency placed CCHF on its priority pathogen list to guide research and accelerate development of vaccines and diagnostics.
• The virus is endemic in Africa, southern Europe, the Middle East and western and south-central Asia, causing an estimated 10,000–15,000 human infections and around 500 deaths globally each year.
• UKHSA is expanding surveillance of tick populations in partnership with local and animal health sectors to monitor shifts in vector distribution driven by climate change.