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A newly identified Crimean-Congo hemorrhagic fever virus strain in Turkey
Murat Elevli1, Ayse Ayaz Ozkul, Mahmut Civilibal
1Department of Pediatrics, Haseki Education and Research Hospital, Istanbul, Turkey.
Abstract:
Crimean-Congo hemorrhagic fever (CCHF) is a fatal viral disease that occurs in approximately 30 countries. It has the most extensive geographic range among the tick-borne viruses that affect human health. Recently, a 6-year-old boy presented with complaints of fever, fatigue, and loss of appetite. He revealed a history of tick bite in rural Istanbul three days prior to presentation. A hyperemia was detected at the site of the tick bite. Laboratory tests showed that alanine aminotransferase, aspartate aminotransferase, lactate dehydrogenase, and creatine phosphokinase levels were elevated and that the prothrombin time and activated partial thromboplastin time were prolonged. Anti-CCHF virus IgM ELISA and a reverse transcriptase-PCR assay for CCHF RNA were both positive. Phylogenetic studies revealed that the virus was a new AP92-like CCHF strain, which was named KMAG-Hu-07-01 (accession number EU057975). This patient could provide important information on the transmission dynamics of CCHF infection.
Insights
Crimean-Congo hemorrhagic fever (CCHF), a tick-borne viral illness, was diagnosed in a child in Istanbul. Phylogenetic analysis identified a new CCHF strain, offering insights into transmission dynamics.
Area of Science:
- * Virology
- * Epidemiology
- * Infectious Diseases
Background:
- * Crimean-Congo hemorrhagic fever (CCHF) is a severe tick-borne viral disease with a wide geographic distribution, affecting human health across approximately 30 countries.
- * The extensive range of CCHF makes it a significant public health concern, necessitating ongoing surveillance and research.
Observation:
- * A 6-year-old boy presented with symptoms including fever, fatigue, and loss of appetite following a tick bite in rural Istanbul.
- * Clinical examination revealed hyperemia at the tick bite site, and laboratory tests indicated elevated liver enzymes (ALT, AST), LDH, CK, and prolonged coagulation times (PT, aPTT).
Findings:
- * Diagnostic assays, including anti-CCHF virus IgM ELISA and RT-PCR, confirmed CCHF infection.
- * Phylogenetic analysis identified the causative agent as a novel AP92-like CCHF strain, designated KMAG-Hu-07-01 (accession number EU057975).
Implications:
- * This case highlights the presence of CCHF in Istanbul and the potential for novel strain emergence.
- * The detailed clinical and genetic information from this pediatric case can enhance understanding of CCHF transmission dynamics and inform public health strategies.
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