BACKGROUND Although there have been a number of studies on the pathogenesis of Crimean-Congo hemorrhagic fever (CCHF) recently, knowledge on this topic is still insufficient. This study aims to reveal the kinetics of serum CCHF virus (CCHFV) titers, serum levels of anti-CCHFV immunoglobulin (Ig)G, tumor necrosis factor (TNF)-α, interleukin (IL)-6, IL-10, and interferon (IFN)-γ in CCHF patients....

BACKGROUND There are only few assays available for the detection of Crimean-Congo Hemorrhagic Fever Virus (CCHFV)-specific antibodies in animals, and data about diagnostic sensitivity and specificity are incompletely documented for most of these tests. This is unfortunate since CCHFV antibodies in animals can be used as indicator for virus circulation in a geographic area and therewith potentia...

Crimean-Congo hemorrhagic fever virus (CCHFV) is a tick-borne virus of the genus Nairovirus and the family Bunyaviridae. It is a negative-strand RNA virus comprised of small (S), medium (M), and large (L) genome segments. The S segment encodes for nucleocapsid protein, the M segment codes for envelope glycoproteins (Gn and Gc), and the L segment codes for the RNA-dependent RNA polymerase. Curre...

BACKGROUND & OBJECTIVES The Balkans is an endemic region for Crimean-Congo hemorrhagic fever (CCHF), caused by the CCHF virus (CCHFV). Several Bulgarian regions comprised of smaller locations are categorized either as endemic or non-endemic for CCHF. However, little is known about the dynamics that underlie the development of endemicity within the locations throughout the years. METHODS Seven...

Crimean-Congo hemorrhagic fever virus (CCHFV) causes viral hemorrhagic fever with high case-fatality rates and is geographically widely distributed. Due to the requirement for a biosafety level 4 (BSL-4) laboratory and the lack of an animal model, knowledge of the viral pathogenesis is limited. Crimean-Congo hemorrhagic fever (CCHF) is characterized by hemorrhage and vascular permeability, indi...

Crimean-Congo hemorrhagic fever virus (CCHFV) is transmitted to humans by bite of infected ticks or by direct contact with blood or tissues of viremic patients or animals. It causes to humans a severe disease with fatality up to 30%. The current knowledge about the vector-host-CCHFV interactions is very limited due to the high-level containment required for CCHFV studies. Among ticks, Hyalomma ...

BACKGROUND Crimean-Congo Hemorrhagic Fever Virus (CCHFV) belongs to genus Nairovirus and family Bunyaviridae. The main aim of this study was to investigate the extent of recombination in S-segment genome of CCHFV in Iran. METHODS Samples were isolated from Iranian patients and those available in GenBank, and analyzed by phylogenetic and bootscan methods. RESULTS Through comparison of the ph...

Background: Crimean-Congo hemorrhagic fever virus (CCHFV) is a highly lethal that causes in humans and endemic many countries, including Iran. Therefore, fast, accurate, reliable diagnosis crucial for patient management outbreak control. Objectives: This study aims to optimize TaqMan multiplex real-time RT-PCR the rapid specific of CCHFV. Methods: In this study, L (NC_005301.3) S (NC_005302.1) ...

Crimean-Congo hemorrhagic fever virus (CCHFV) is a tick-borne zoonotic agent that is maintained in nature in an enzootic vertebrate-tick-vertebrate cycle. Hyalomma genus ticks have been implicated as the main CCHFV vector and are key in maintaining silent endemic foci. However, what contributes to their central role in CCHFV ecology is unclear. To assess the significance of host preferences of ...

Crimean-Congo hemorrhagic fever virus (CCHFV) is a tick-borne virus (genus Nairovirus, family Bunyaviridae) associated with high case fatality disease outbreaks in regions of Africa, Europe, and Asia. The CCHFV genome consists of three negative-strand RNA segments, S, M, and L. The unusually large virus L polymerase protein and the need for biosafety level 4 (BSL-4) containment conditions for w...