Seroprevalence of hepatitis E virus among blood donors on Corsica, France, 2017
Open Access
- 6 February 2020
- journal article
- research article
- Published by European Centre for Disease Control and Prevention (ECDC) in Eurosurveillance
- Vol. 25 (5), 1900336-31
- https://doi.org/10.2807/1560-7917.es.2020.25.5.1900336
Abstract
Background Hepatitis E virus (HEV) is an emerging zoonotic pathogen and an important cause of acute viral hepatitis in European countries. Corsica Island has been previously identified as a hyperendemic area for HEV. Aim Our aim was to characterise the prevalence and titres of IgG antibodies to HEV among blood donors on Corsica and establish a model of the annual force of infection. Methods Between September 2017 and January 2018, 2,705 blood donations were tested for anti-HEV IgG using the Wantai HEV IgG enzyme immunoassay. Results The overall seroprevalence was 56.1%. In multivariate analysis, seroprevalence was higher in men than in women (60.0% vs 52.2%; p < 0.01), increased with age and was significantly higher among donors born on Corsica (60.6% vs 53.2%; p < 0.01). No significant difference was observed between the five districts of the island. IgG anti-HEV titres were mostly low (70% of positive donors had titres < 3 IU/mL). In Corsican natives, increasing seroprevalence by age could be explained by models capturing a loss of immunity (annual probability of infection: 4.5%; duration of immunity: 55 years) or by age-specific probabilities of infection (3.8% for children, 1.3% for adults). Conclusion We confirmed the high HEV seroprevalence on Corsica and identified three aspects that should be further explored: (i) the epidemiology in those younger than 18 years, (ii) common sources of contamination, in particular drinking water, that may explain the wide exposure of the population, and (iii) the actual protection afforded by the low IgG titres observed and the potential susceptibility to secondary HEV infection.Keywords
This publication has 52 references indexed in Scilit:
- Chronic hepatitis E virus infection in a patient with leukemia and elevated transaminases: a case reportJournal of Medical Case Reports, 2012
- Seroprevalence of anti-hepatitis E virus (HEV) in a Korean population: comparison of two commercial anti-HEV assaysBMC Infectious Diseases, 2012
- Hepatitis E Virus Antibodies in Blood Donors, FranceEmerging Infectious Diseases, 2011
- Clinical presentation of hepatitis EVirus Research, 2011
- Zoonotic hepatitis E: animal reservoirs and emerging risksVeterinary Research, 2010
- Hepatitis E Virus (HEV) Strains in Serum Samples Can Replicate Efficiently in Cultured Cells Despite the Coexistence of HEV Antibodies: Characterization of HEV Virions in Blood CirculationJournal of Clinical Microbiology, 2010
- Hepatitis E Outbreak on Cruise ShipEmerging Infectious Diseases, 2009
- Hepatitis E: an emerging infection in developed countriesThe Lancet Infectious Diseases, 2008
- Hepatitis E in pregnancyInternational Journal of Gynecology & Obstetrics, 2004
- Bayesian Measures of Model Complexity and FitJournal of the Royal Statistical Society Series B: Statistical Methodology, 2002