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Crimean-Congo hemorrhagic fever (CCHF) is a zoonosis caused by a Nairovirus of the family Bunyaviridae. Infection is transmitted to humans mostly by Hyalomma ticks and also by direct contact with the blood or tissues of infected humans or viremic livestock. Clinical features usually include a rapid progression characterized by hemorrage, myalgia and fever, with a lethality rate up to 30%. Diagnostic techniques for diagnosis of CCHF incude virus culture, serology and molecular methods, which are now increasingly used.  The European Network for the Diagnostics of "Imported" Viral Diseases organized the first international external quality assessment of CCHVF molecular diagnostics in 2011 to assess the efficiency and accurateness of CCHFV molecular methods applied by expert laboratories.

The article, presenting the results of the external quality assessment is available here