Araştırma Makalesi

Investigation of The Prevalence of Tick-Borne Encephalitis Virus Antibodies In Patients With Preliminary Diagnosis of Crimean-Congo Hemorrhagic Fever

Cilt: 47 Sayı: 1 29 Mart 2025
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Investigation of The Prevalence of Tick-Borne Encephalitis Virus Antibodies In Patients With Preliminary Diagnosis of Crimean-Congo Hemorrhagic Fever

Abstract

ABSTARCT Objective: The tick-borne encephalitis virus (TBEV), a flavivirus transmitted by Ixodes spp. ticks, can cause a clinical picture characterized by nonspecific symptoms, as well as more specific conditions such as encephalitis and myelitis. Most patients admitted and followed with a preliminary diagnosis of Crimean-Congo hemorrhagic fever (CCHF) are from regions with a risk of tick exposure. The aim of this study is to determine the epidemiology of TBEV. Material and Method: A total of 272 adult patients admitted with a preliminary diagnosis of CCHF between April and September 2021 in the Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, XXX University, were included in the study. The diagnosis of CCHF was defined using the criteria established by the CCHF Scientific Committee of the Turkish Ministry of Health. To determine the seroprevalence of TBE, TBEV-IgG antibodies were investigated in patient serum samples using the ELISA method (Anti-TBE Virus ELISA (IgG), Euroimmun, Germany). The results were evaluated by calculating the ratio of the extinction value of the patient sample to the extinction value of calibrator 2. Ratios below 0.8 were considered negative, between 0.8 and 1.1 were considered borderline, and greater than 1.1 were considered positive. Patients with no detected antibodies against TBEV in their serum samples were considered seronegative. Results: The mean age of the 272 patients included in the study was 49.46 ± 17.48 years (Range: 18-98 years), with 181 (66.5%) being male. All patients' TBEV antibody levels were evaluated as negative. The provinces of residence of the patients were Sivas, Giresun, Tokat, Yozgat, and Erzincan. A history of tick exposure was found in 204 (75%) of the patients, with 143 (79%) of male patients and 61 (67%) of female patients reporting tick exposure. Conclusion: In this study, the absence of antibodies against TBEV indirectly demonstrated the absence of TBEV in the tick population. However, no study has been conducted to detect the presence of TBEV in the tick population in Sivas province, and our study is the first to address this issue. Nevertheless, further seroepidemiological studies are required.

Keywords

Destekleyen Kurum

Sivas cumhur

Proje Numarası

T-2022-988

Kaynakça

  1. 1- Büyüktuna S.A, Bolat S, Doğan K, Çakır Y, Doğan H.O. Assessment of Serum Beta 2-Microglobulin Levels in Crimean-Congo Hemorrhagic Fever Patients: Implications for Immune Activation and Disease Pathogenesis. Cumhuriyet Science Journal, 2024;45(2):338-42.
  2. 2- Baysal AÇ, Kıymaz YÇ, Şahin NÖ, Bakır M. Investigation of Long Noncoding RNA-NRAV and Long Noncoding RNA-Lethe Expression in Crimean-Congo Hemorrhagic Fever. J Med Virol. 2024 Dec;96(12):e70142.
  3. 3- Büyüktuna SA, Yerlitaş Sİ, Zararsız GE, Doğan K, Kablan D, Bağcı G, et al. Exploring free amino acid profiles in Crimean-Congo hemorrhagic fever patients: Implications for disease progression. J Med Virol. 2024;96(5):e29637.
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  6. 6- Lindquist, Lars, and Olli Vapalahti. Tick-borne encephalitis. The Lancet. 2008;371:1861-71.
  7. 7- Shayan S, Bokaean M, Shahrivar MR, Chinikar S. Crimean-Congo Hemorrhagic Fever. Lab Med. 2015;46(3):180-9.
  8. 8- Leblebicioglu H, Bodur H, Dokuzoguz B, Elaldi N, Guner R, Koksal I, et al. Case management and supportive treatment for patients with Crimean-Congo hemorrhagic fever. Vector Borne Zoonotic Dis. 2012 Sep;12(9):805-11. doi: 10.1089/ vbz.2011.0896.

Ayrıntılar

Birincil Dil

İngilizce

Konular

Uygulama Bilimi ve Değerlendirme

Bölüm

Araştırma Makalesi

Erken Görünüm Tarihi

29 Mart 2025

Yayımlanma Tarihi

29 Mart 2025

Gönderilme Tarihi

22 Şubat 2025

Kabul Tarihi

18 Mart 2025

Yayımlandığı Sayı

Yıl 2025 Cilt: 47 Sayı: 1

Kaynak Göster

AMA
1.Öz M, Çakır Kıymaz Y, Öksüz C, vd. Investigation of The Prevalence of Tick-Borne Encephalitis Virus Antibodies In Patients With Preliminary Diagnosis of Crimean-Congo Hemorrhagic Fever. CMJ. 2025;47(1):22-25. doi:10.7197/cmj.1645117