Dengue Hemorrhagic Fever in a Japanese Traveler with Pre-existing Japanese Encephalitis Virus Antibody
| Autor: | Takahito Kashiwagi, Munetsugu Nishimura, Hiroshi Watanabe, Tomoko Kamimura, Takeharu Koga, Koyu Hara, Nobuyuki Hamada, Yoshihiro Imamura, Tomohiko Takasaki, Rumi Sato |
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| Rok vydání: | 2015 |
| Předmět: |
Serotype
viruses Secondary infection Short Communications dengue hemorrhagic fever thrombocytopenia Dengue virus medicine.disease_cause Japanese encephalitis virus antibody Virus Dengue fever cross-reactive antibody Medicine Neutralizing antibody antibody-dependent enhancement (ADE) biology business.industry imported infection Public Health Environmental and Occupational Health virus diseases Japanese encephalitis biology.organism_classification medicine.disease Virology Flavivirus petechiae Infectious Diseases Immunology biology.protein business |
| Zdroj: | Tropical Medicine and Health |
| ISSN: | 1349-4147 1348-8945 |
| Popis: | An adult Japanese man who had just returned from Thailand developed dengue hemorrhagic fever (DHF). A primary infection of dengue virus (DENV) was confirmed, specifically DENV serotype 2 (DENV-2), on the basis of the detection of the virus genome, a significant increase in the neutralizing antibody and the isolation of DENV-2. DHF is often observed following a secondary infection from another serotype of dengue virus, particularly in children, but this case was a primary infection of DENV. Japan is a non-endemic country for dengue disease. In fact, only Japanese encephalitis (JE) is known to be a member of the endemic flavivirus family. In this study, IgG antibody against Japanese encephalitis virus (JEV) was detected. JEV belongs to the family of dengue virus and prevails in Japan, particularly Kyushu. Among many risk factors for the occurrence of DHF, a plausible candidate could be a cross-reactive antibody-dependent enhancement (ADE) mechanism caused by JEV antibody. This indicates that most Japanese travelers who living in dengue non-endemic areas, particularly Kyushu, should be aware of the occurrence of DHF. |
| Databáze: | OpenAIRE |
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