Doroteo Acero Fernández1, María José Ferri Iglesias2, María Buxó Pujolràs3, Carmen López Nuñez4, Isabel Serra Matamala4, Xavier Queralt Molés2, Xavier Aldeguer Manté5. 1. Department of Digestive Diseases, Hospital de Girona, Doctor Josep Trueta, Girona, Spain. Electronic address: doroteoacero@yahoo.es. 2. Laboratori Clínic Territorial, Parque hospitalario Martí I Julià, Salt, Spain. 3. Institut de Investigacions Biomèdiques de Girona, IdIBGi, Salt, Spain. 4. Department of Digestive Diseases, Hospital de Girona, Doctor Josep Trueta, Girona, Spain. 5. Department of Digestive Diseases, Hospital de Girona, Doctor Josep Trueta, Girona, Spain; Institut de Investigacions Biomèdiques de Girona, IdIBGi, Salt, Spain.
Abstract
BACKGROUND: Genotypic distribution and epidemiology of HCV infection in Western Europe countries has changed over the last decades. AIM: To establish the local genotypic profile and characterize the associated demographic variables. MATERIAL AND METHOD: All the genotyping from 1988 to 2015 were considered. Associated demographic variables were included in logistic regression models. Genotyping was carried out with updated commercial kits. RESULTS: Genotype 1b was the most prevalent (42.4%) followed by 1a (22.5%), 3 (18.6%), 4 (10.6%) and 2 (4.6%). The prevalence of 1a was higher in males, in patients younger than 45 and in intravenous drug users (IDU). 1b was more frequent in older than 45, with transfusion-associated and parenteral/nosocomial infections and in immigrants from Eastern Europe. Genotype 2 was highly prevalent in the postransfusional route (54.9%). Genotype 3 prevalence was high in males, in patients younger than 45, in IDU (69.3%) and in Asian and Eastern European immigrants. Genotype 4 was high in males, in patients younger than 45, and in IDU (63.5%). 1a, 3, 4 were the most prevalent genotypes in HIV-coinfected patients. There was a significant decline in genotype 1b and an increase in genotypes 3 and 4 over time. CONCLUSIONS: There has been a decline of genotype 1b, associated with transfusion or parenteral/nosocomial infections, and increases in the prevalence of genotypes 1a, 3 and 4 associated with male gender and IDU, now the most prevalent infection route. Immigration contributed with genotype 2 infections from Africa and genotype 1b and 3 infections from Eastern Europe and Asia.
BACKGROUND: Genotypic distribution and epidemiology of HCV infection in Western Europe countries has changed over the last decades. AIM: To establish the local genotypic profile and characterize the associated demographic variables. MATERIAL AND METHOD: All the genotyping from 1988 to 2015 were considered. Associated demographic variables were included in logistic regression models. Genotyping was carried out with updated commercial kits. RESULTS: Genotype 1b was the most prevalent (42.4%) followed by 1a (22.5%), 3 (18.6%), 4 (10.6%) and 2 (4.6%). The prevalence of 1a was higher in males, in patients younger than 45 and in intravenous drug users (IDU). 1b was more frequent in older than 45, with transfusion-associated and parenteral/nosocomial infections and in immigrants from Eastern Europe. Genotype 2 was highly prevalent in the postransfusional route (54.9%). Genotype 3 prevalence was high in males, in patients younger than 45, in IDU (69.3%) and in Asian and Eastern European immigrants. Genotype 4 was high in males, in patients younger than 45, and in IDU (63.5%). 1a, 3, 4 were the most prevalent genotypes in HIV-coinfectedpatients. There was a significant decline in genotype 1b and an increase in genotypes 3 and 4 over time. CONCLUSIONS: There has been a decline of genotype 1b, associated with transfusion or parenteral/nosocomial infections, and increases in the prevalence of genotypes 1a, 3 and 4 associated with male gender and IDU, now the most prevalent infection route. Immigration contributed with genotype 2 infections from Africa and genotype 1b and 3 infections from Eastern Europe and Asia.
Keywords:
Chronic hepatitis C; Epidemiology; Epidemiología; Genotipos; Genotypes; HCV; Hepatitis C crónica; Hepatitis C virus; VHC; Virus de la hepatitis C
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