Diagnostic approaches for Crimean-Congo hemorrhagic fever virus.

Diagnostic approaches for Crimean-Congo hemorrhagic fever virus. Expert Rev Mol Diagn. 2019 May 03;: Authors: Papa A Abstract INTRODUCTION: Crimean-Congo hemorrhagic fever (CCHF) is a potentially severe tick-borne viral disease endemic in several regions of Europe, Africa and Asia. Rapid and reliable diagnosis is essential for early initiation of patient's treatment and for prompt implementation of appropriate precaution and infection control measures to prevent further spread of the disease. Areas covered: A literature search was undertaken on available approaches for laboratory diagnosis of CCHF infections and the advantages and limitations of the assays are discussed. Expert opinion: Given that the genetic variability among CCHFV strains is high, attention has to be paid on the molecular protocols to detect all currently known genetic lineages of the virus as emergence of CCHFV strains belonging to various lineages in new environments is not unexpected. In severe cases, the antibody production may be delayed or absent. It is important that the laboratories involved in CCHFV diagnostics to run quality control assays. Standardized assays and point-of-care tests with high sensitivity and specificity are needed. It is expected that the application of next generation sequencing will be a powerful tool for CCHF diagnostics. Awareness, preparedness and surveillance are required for prompt detection of CCHF cases. PMID: 31053042 [PubMed - as supplied by pu...
Source: Expert Review of Molecular Diagnostics - Category: Laboratory Medicine Tags: Expert Rev Mol Diagn Source Type: research

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Golden Crimean-Congo hemorrhagic fever virus (CCHFV) is an important tick-borne human pathogen endemic throughout Asia, Africa and Europe. CCHFV is also an emerging virus, with recent outbreaks in Western Europe. CCHFV can infect a large number of wild and domesticated mammalian species and some avian species, however the virus does not cause severe disease in these animals, but can produce viremia. In humans, CCHFV infection can lead to a severe, life-threating disease characterized by hemodynamic instability, hepatic injury and neurological disorders, with a worldwide lethality rate of ~20–30%. The pathogen...
Source: Viruses - Category: Virology Authors: Tags: Review Source Type: research
In conclusion, climate appeared to affect the number of CCHF patients. We believe that the number of patients presenting to the hospital with CCHF could be predicted by taking into account climatic properties of the places where CCHF has been recorded, along with undertaking necessary measures. PMID: 31168176 [PubMed - in process]
Source: Acta Clinica Croatica - Category: General Medicine Tags: Acta Clin Croat Source Type: research
Publication date: Available online 28 May 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Huseyin Kayadibi, Derya Yapar, Ozlem Akdogan, Nuriye N. Ulusu, Nurcan BaykamAbstractCrimean-Congo hemorrhagic fever (CCHF) is fatal. Therefore, it is very important to use an inexpensive, easily accessible, quick and accurate screening index based on clinical signs and laboratory parameters to identify patients suspected of having CCHF.Laboratory test results on the day of hospitalization for 268 inpatients suspected of having CCHF were used to calculate the laboratory section of the Hitit Index, while 65 of these were also monito...
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research
Abstract Crimean-Congo hemorrhagic fever (CCHF) is a tick-borne disease that can evolve into deadly hemorrhagic fever and that is endemic in many parts of Europe, Middle East, Central Asia, and Africa. Because of several reports about CCHF outbreaks in the south of Sudan during the last years, we examined in this study if unrecognized CCHF-V infections also occurred in the eastern and central parts of the country. The study examined the seroprevalence of CCHF virus infection in 464 sera from three regions of Sudan without previous reports of CCHF infection. The total CCHF virus seroprevalence was 2.6% (12 sera). T...
Source: The American Journal of Tropical Medicine and Hygiene - Category: Tropical Medicine Authors: Tags: Am J Trop Med Hyg Source Type: research
Crimean-Congo hemorrhagic fever virus (CCHFV) is a tick-borne Nairovirus that causes severe hemorrhagic fever with a mortality rate of up to 30% in certain outbreaks worldwide. The virus has wide endemic distribution. There is no effective antiviral therapeutic or FDA approved vaccine for this zoonotic viral illness. The multifunctional CCHFV nucleocapsid protein (N protein) plays a crucial role in the establishment of viral infection and is an important structural component of the virion. Here we show that CCHFV N protein has a distant RNA-binding site in the stalk domain that specifically recognizes the vRNA panhandle, f...
Source: Journal of Biological Chemistry - Category: Chemistry Authors: Tags: Molecular Bases of Disease Source Type: research
In conclusion, vector-based CCHFV N protein expression constitutes an effective approach for vaccine development and BoHV-4 emerged as a strong alternative to previously used viral vectors.
Source: Viruses - Category: Virology Authors: Tags: Article Source Type: research
During the last decades, arboviruses that are endemic in Europe have expanded their geographic range and caused an increasing number of human outbreaks. These viruses include West Nile virus, which is expanding its area of circulation in central and southern Europe; Usutu virus, with increasing evidence of a role in human disease; tick-borne encephalitis virus, which is being detected in northern areas and at higher altitudes as a consequence of climate warming; Crimean-Congo hemorrhagic fever virus, which is endemic in Eastern Europe and the Middle East, but has been recently detected in Spain; other viruses, such as Cali...
Source: Journal of Clinical Virology - Category: Virology Authors: Source Type: research
ConclusionsPeople in high-risk professions in the endemic areas should be informed and trained on the risk of Crimean-Congo hemorrhagic fever as a matter of urgency. Vaginal bleeding is not always a gynecological problem. In Albania, these places are the mountainous areas, so people who have traveled to these areas and who have symptoms after a tick bite are advised to contact their doctors.
Source: Journal of Medical Case Reports - Category: General Medicine Source Type: research
by Jessica R. Spengler, Agustin Estrada-Pe ña 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 ticks in CCHFV ecology, we performed comparative analyses of hosts exploited by 133 species of ticks; these species represent 5 genera with reported geographical distribution over ...
Source: PLoS Neglected Tropical Diseases - Category: Tropical Medicine Authors: Source Type: research
Publication date: Available online 9 January 2018 Source:Antiviral Research Author(s): Miriam A. Sas, Loic Comtet, Fabien Donnet, Marc Mertens, Zati Vatansever, Noel Tordo, Philippe Pourquier, Martin H. Groschup Crimean-Congo hemorrhagic fever (CCHF) is a tick-borne disease in humans caused by the CCHF virus (CCHFV). The detection of anti-CCHFV antibodies in animals is used to reveal infection risk areas. Therefore a simple, quick and reliable multispecies assay for the detection of CCHFV-specific antibodies is needed. This work presents the development and validation of a novel CCHF double-antigen ELISA for the detection...
Source: Antiviral Therapy - Category: Virology Source Type: research
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