We report a fatal case of Crimean-Congo hemorrhagic fever in Portugal. An 83-year-old man, initially suspected of having Mediterranean spotted fever, was later confirmed to have Crimean-Congo hemorrhagic fever by the detection of viral genome in the patient's serum and the presence of specific IgM antibodies.
Keywords: Crimean-Congo hemorrhagic fever; Crimean-Congo hemorrhagic fever virus; Portugal; arbovirus; tick-borne diseases; vector-borne infections; viral hemorrhagic fevers; viruses.