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Mansberg K, Kull K, Salupere R, Prükk T, Margus B, Kariis T, Remmel T, Suurmaa K, Ott K, Jaago K, Šmidt J. A Population-Based Surveillance Study on the Epidemiology of Hepatitis C in Estonia. ACTA ACUST UNITED AC 2018; 54:medicina54010009. [PMID: 30344240 PMCID: PMC6037246 DOI: 10.3390/medicina54010009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Revised: 03/20/2018] [Accepted: 03/21/2018] [Indexed: 02/07/2023]
Abstract
Background and objective: The hepatitis C virus (HCV)-infected patients serve as a reservoir for transmission of the disease to others and are at risk of developing chronic hepatitis C, cirrhosis, and hepatocellular carcinoma. Although the epidemiological data of high rate HCV infection have been obtained in many countries, such data are insufficient in Estonia. Therefore, the aim of the study was to analyze country-specific data on HCV patients. Materials and methods: Data about age, gender, diagnosis, possible risk factors, coinfections, HCV genotypes, liver fibrosis stages and extrahepatic manifestations were collected from 518 patients. Results: The most common risk factors for hepatitis C were injection drug use and tattooing in the 30–39 and 40–49 year age groups, and blood transfusion in the 50–59 and 60–69 year age groups. The other risk factors established were profession-related factors and sexual contact. The prevailing viral genotype among the HCV infected patients was genotype 1 (69% of the patients) followed by genotype 3 (25%). Genotypes 1 and 3 correlated with blood transfusions before 1994, drug injections and tattooing. Conclusions: Our study provides the best representation of genotype distribution across Estonia. As a result of the study, valuable data has been collected on hepatitis C patients in Estonia.
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Affiliation(s)
- Kairi Mansberg
- Department of Gastroenterology, Tartu University Hospital, University of Tartu, 51014 Tartu, Estonia.
- Internal Disease Clinic, Tartu University Hospital, University of Tartu, 51014 Tartu, Estonia.
| | - Karin Kull
- Department of Gastroenterology, Tartu University Hospital, University of Tartu, 51014 Tartu, Estonia.
- Internal Disease Clinic, Tartu University Hospital, University of Tartu, 51014 Tartu, Estonia.
| | - Riina Salupere
- Department of Gastroenterology, Tartu University Hospital, University of Tartu, 51014 Tartu, Estonia.
- Internal Disease Clinic, Tartu University Hospital, University of Tartu, 51014 Tartu, Estonia.
| | - Tiina Prükk
- Department of Gastroenterology, Tartu University Hospital, University of Tartu, 51014 Tartu, Estonia.
- Internal Disease Clinic, Tartu University Hospital, University of Tartu, 51014 Tartu, Estonia.
| | - Benno Margus
- Department of Gastroenterology, East Tallinn Central Hospital, 10138 Tallinn, Estonia.
| | - Toomas Kariis
- Department of Gastroenterology, East Tallinn Central Hospital, 10138 Tallinn, Estonia.
| | - Triin Remmel
- Department of Gastroenterology, East Tallinn Central Hospital, 10138 Tallinn, Estonia.
| | - Külliki Suurmaa
- Department of Gastroenterology and Infectios Diseases Clinic, West Tallinn Central Hospital, 10138 Tallinn, Estonia.
| | - Kristi Ott
- Department of Gastroenterology and Infectios Diseases Clinic, West Tallinn Central Hospital, 10138 Tallinn, Estonia.
| | - Krista Jaago
- Internal Disease Clinic, Pärnu Hospital, 80010 Pärnu, Estonia.
| | - Jelena Šmidt
- Internal Disease Clinic, East Viru Central Hospital, 31024 Kohtla-Järve, Estonia.
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Zusinaite E, Krispin T, Raukas E, Kiiver K, Salupere R, Ott K, Ustina V, Zilmer K, Schmidt J, Sizemski L, Jaago K, Luman M, Ilmoja M, Prükk T, Ustav M. Hepatitis C virus genotypes in Estonia. APMIS 2000; 108:739-46. [PMID: 11211967 DOI: 10.1034/j.1600-0463.2000.d01-23.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Distribution of hepatitis C virus (HCV) geno(sub)types among 215 Estonian patients hospitalized with acute or chronic hepatitis and with HCV RNA-positive sera was investigated. For genotyping, both multiplex PCR with subtype-specific primers of the core region and RFLP analysis of cDNA of the 5' NCR region were used. These two methods permitted a correct characterization of genotypes, a more truthful characterization of mixed infections, and combined use of single-tube performances. They revealed, respectively, 200 and 202 (93.0% and 93.9%) HCV-positive samples of sera, subtype 1a- 0.9% and 0.9%, 1b- 56.3% and 64.2%, 3a- 13.9% and 22.3%, 2a- 6.5% and 5.6%, type 4 0.5% and 0%, mixed infections- 13.5% and 0%, and unidentified- 1.4% and 0.9%. In the majority of cases (84.7%) both methods gave completely or partially concordant results; in mixed infections, as determined by subtype-specific PCR, only one subtype was revealed by the RFLP method. In the remaining 15.3% of the cases (Ohno- 7.0%, RFLP- 8.3%) only one of the methods was positive. The epidemiological analysis of the dynamics of the subtypes' relative participation may indicate increasing 3a and decreasing 1b subtype infection during recent years.
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Affiliation(s)
- E Zusinaite
- Department of Internal Medicine, University of Tartu, Estonia
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