Crimean-Congo hemorrhagic fever

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  • MATSUNO Keita
    Division of Risk Analysis and Management, International Institute for Zoonosis Control, Hokkaido University International Collaboration Unit, International Institute for Zoonosis Control, Hokkaido University One Health Research Center, Hokkaido University
  • SAIJO Masayuki
    Sapporo City Public Health Office National Institute of Infectious Diseases

Bibliographic Information

Other Title
  • クリミア・コンゴ出血熱
  • クリミア ・ コンゴ シュッケツ ネツ

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Description

Crimean-Congo hemorrhagic fever (CCHF) is an acute febrile illness with a high case fatality rate caused by the infection with Crimean-Congo hemorrhagic fever virus (CCHFV). The disease is endemic to a wide regions from the African continent to Asia through Europe. CCHFV is maintained in nature between Hyalomma species ticks and some species of animals. Humans are infected with CCHFV from CCHFV-positive tick bite or through a close contact with viremic animals in clucling hum am patients with CCHF. The CCHF-endemic regions depend on the distribution of the species of ticks such as Hyalomma species ticks, main vectors for CCHFV. There have been no confirmed cases of CCHF patients in Japan so far. CCHF is one of the zoonotic virus infections. Main clinical signs of the disease in humans are fever with nonspecific symptoms, and hemorrhage and deterioration in consciousness appear in severe cases. CCHF is classified in the disease category of viral hemorrhagic fevers, which include ebolavirus disease. Viral tick-borne diseases including tick-borne encephalitis, severe fever with thrombocytopenia syndrome, and Yezo virus infection, which has recently been discovered as a novel bunyavirus infection in Hokkaido, Japan, are becoming major concerns for public health in Japan. Trends of CCHF in terms of epidemiology should closely be monitored.

Journal

  • Uirusu

    Uirusu 72 (1), 19-30, 2022

    The Japanese Society for Virology

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