West Nile virus meningoencephalitis and cytokines analysis: review and case report

West Nile virus (WNV) is transmitted via mosquito bites and causes ubiquitous zoonosis. Most infections in humans are asymptomatic, approximately 20% present as fever, and less than 1% as neuroinvasive disease. Central nervous system involvement is presented as meningitis, encephalitis, acute flacci...

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Main Authors: Petya Argirova, Yordan Kalchev, Petar Vasilev, Iva Christova, Mariyana Stoycheva, Marianna Murdjeva
Format: Article
Language:English
Published: Taylor & Francis Group 2024-12-01
Series:Biotechnology & Biotechnological Equipment
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Online Access:https://www.tandfonline.com/doi/10.1080/13102818.2024.2358991
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author Petya Argirova
Yordan Kalchev
Petar Vasilev
Iva Christova
Mariyana Stoycheva
Marianna Murdjeva
author_facet Petya Argirova
Yordan Kalchev
Petar Vasilev
Iva Christova
Mariyana Stoycheva
Marianna Murdjeva
author_sort Petya Argirova
collection DOAJ
description West Nile virus (WNV) is transmitted via mosquito bites and causes ubiquitous zoonosis. Most infections in humans are asymptomatic, approximately 20% present as fever, and less than 1% as neuroinvasive disease. Central nervous system involvement is presented as meningitis, encephalitis, acute flaccid paralysis, or a combination of them. West Nile neuroinvasive disease (WNND) has a severe clinical course, potentially fatal outcome and frequent neurological sequelae in survivors. Risk factors for neurological impairment are advanced age and immunosuppression. Here we present a clinical case of meningoencephalitis caused by WNV and a brief literature review. Clinical and epidemiological data, laboratory, microbiological, molecular methods and imaging techniques were used. The cytokine levels of IL-6, IL-8, IL-10, IL-12(p40) and TNF-α in cerebrospinal fluid (CSF) and serum were also measured. We present a 55-year-old man with a sudden onset of headache, vomiting and fever. The symptoms appeared after a recent trip to Türkiye and involved multiple mosquito bites. Neck stiffness, disturbances in consciousness, signs of cerebral edema and subsequently focal neurological deficits were observed. The etiological diagnosis was verified by positive polymerase chain reaction for WNV and the presence of specific IgM antibodies in the CSF. After a 28-day hospital stay, the patient was discharged and referred to a Physiotherapy Unit due to residual motor deficits. WNV etiology should be suspected in patients with clinical and laboratory signs of viral neuroinfection, mosquito bites, and/or travel to endemic regions.
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spelling doaj-art-ec08fc611f65497ebc8734d738122ae32024-12-10T05:42:51ZengTaylor & Francis GroupBiotechnology & Biotechnological Equipment1310-28181314-35302024-12-0138110.1080/13102818.2024.2358991West Nile virus meningoencephalitis and cytokines analysis: review and case reportPetya Argirova0Yordan Kalchev1Petar Vasilev2Iva Christova3Mariyana Stoycheva4Marianna Murdjeva5Department of Infectious Diseases, Parasitology and Tropical Medicine, Faculty of Medicine, Medical University - Plovdiv, Plovdiv, BulgariaDepartment of Medical Microbiology аnd Immunology “Prof. Dr. Elissey Yanev”, Faculty of Medicine, Medical University-Plovdiv, Plovdiv, BulgariaDepartment of Infectious Diseases, Parasitology and Tropical Medicine, Faculty of Medicine, Medical University - Plovdiv, Plovdiv, BulgariaNational Laboratory “Influenza and ARD”, Department of Virology, National Centre of Infectious and Parasitic Diseases, Sofia, BulgariaResearch Institute, Medical University-Plovdiv, Plovdiv, BulgariaDepartment of Medical Microbiology аnd Immunology “Prof. Dr. Elissey Yanev”, Faculty of Medicine, Medical University-Plovdiv, Plovdiv, BulgariaWest Nile virus (WNV) is transmitted via mosquito bites and causes ubiquitous zoonosis. Most infections in humans are asymptomatic, approximately 20% present as fever, and less than 1% as neuroinvasive disease. Central nervous system involvement is presented as meningitis, encephalitis, acute flaccid paralysis, or a combination of them. West Nile neuroinvasive disease (WNND) has a severe clinical course, potentially fatal outcome and frequent neurological sequelae in survivors. Risk factors for neurological impairment are advanced age and immunosuppression. Here we present a clinical case of meningoencephalitis caused by WNV and a brief literature review. Clinical and epidemiological data, laboratory, microbiological, molecular methods and imaging techniques were used. The cytokine levels of IL-6, IL-8, IL-10, IL-12(p40) and TNF-α in cerebrospinal fluid (CSF) and serum were also measured. We present a 55-year-old man with a sudden onset of headache, vomiting and fever. The symptoms appeared after a recent trip to Türkiye and involved multiple mosquito bites. Neck stiffness, disturbances in consciousness, signs of cerebral edema and subsequently focal neurological deficits were observed. The etiological diagnosis was verified by positive polymerase chain reaction for WNV and the presence of specific IgM antibodies in the CSF. After a 28-day hospital stay, the patient was discharged and referred to a Physiotherapy Unit due to residual motor deficits. WNV etiology should be suspected in patients with clinical and laboratory signs of viral neuroinfection, mosquito bites, and/or travel to endemic regions.https://www.tandfonline.com/doi/10.1080/13102818.2024.2358991Meningoencephalitisencephalitiswest nile virusPCRcytokinesneurological sequelae
spellingShingle Petya Argirova
Yordan Kalchev
Petar Vasilev
Iva Christova
Mariyana Stoycheva
Marianna Murdjeva
West Nile virus meningoencephalitis and cytokines analysis: review and case report
Biotechnology & Biotechnological Equipment
Meningoencephalitis
encephalitis
west nile virus
PCR
cytokines
neurological sequelae
title West Nile virus meningoencephalitis and cytokines analysis: review and case report
title_full West Nile virus meningoencephalitis and cytokines analysis: review and case report
title_fullStr West Nile virus meningoencephalitis and cytokines analysis: review and case report
title_full_unstemmed West Nile virus meningoencephalitis and cytokines analysis: review and case report
title_short West Nile virus meningoencephalitis and cytokines analysis: review and case report
title_sort west nile virus meningoencephalitis and cytokines analysis review and case report
topic Meningoencephalitis
encephalitis
west nile virus
PCR
cytokines
neurological sequelae
url https://www.tandfonline.com/doi/10.1080/13102818.2024.2358991
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