Viral load and clinical manifestations of hepatitis E virus genotype 3 infections. 2019

Sebastien Lhomme, and Pierre Gallian, and Chloé Dimeglio, and Azzedine Assal, and Florence Abravanel, and Pierre Tiberghien, and Jacques Izopet
Laboratoire de Virologie, CHU Purpan, Toulouse, France.

A fraction of plasma donations undergoes hepatitis E virus (HEV) RNA screening since late 2014 in France. The aim of this study was to determine the frequency of HEV RNA as well as the viral load and the evolution of genotype distribution over a 3-year period (2015-2017) in asymptomatic blood donors in comparison with symptomatic patients routinely diagnosed. The overall detection rate of HEV RNA in plasma donations was 0.10% during the 3-year period, with a median viral load of 717 IU/mL (range: <60-168 000 IU/mL) in the 189 samples found HEV RNA positive. One hundred and twenty samples (64.4%) were successfully HEV genotyped. Most strains were HEV3f (n = 54; 44.3%) and HEV3c (n = 46; 37.7%). The genotype distribution was not different throughout the 3-year period and we found no association between the genotype and where the blood donors lived (P = 0.96). The HEV genotype distributions in infected blood donors and symptomatic patients were similar. However, the symptomatic patients had a higher viral load (median 282 000 IU/mL; range: <60-136 000 000 IU/mL; P < 0.01) than the blood donors. Overall, asymptomatic blood donors and patients with symptomatic hepatitis E had similar genotype distributions but the blood donors had lower viral loads.

UI MeSH Term Description Entries
D007074 Immunoglobulin G The major immunoglobulin isotype class in normal human serum. There are several isotype subclasses of IgG, for example, IgG1, IgG2A, and IgG2B. Gamma Globulin, 7S,IgG,IgG Antibody,Allerglobuline,IgG(T),IgG1,IgG2,IgG2A,IgG2B,IgG3,IgG4,Immunoglobulin GT,Polyglobin,7S Gamma Globulin,Antibody, IgG,GT, Immunoglobulin
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D001782 Blood Donors Individuals supplying blood or blood components for transfer to histocompatible recipients. Blood Donor,Donor, Blood,Donors, Blood
D005602 France A country in western Europe bordered by the Atlantic Ocean, the English Channel, the Mediterranean Sea, and the countries of Belgium, Germany, Italy, Spain, Switzerland, the principalities of Andorra and Monaco, and by the duchy of Luxembourg. Its capital is Paris. Corsica,Saint Pierre and Miquelon,Miquelon and Saint Pierre,Miquelon and St. Pierre,St. Pierre and Miquelon
D005838 Genotype The genetic constitution of the individual, comprising the ALLELES present at each GENETIC LOCUS. Genogroup,Genogroups,Genotypes
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D012367 RNA, Viral Ribonucleic acid that makes up the genetic material of viruses. Viral RNA
D016751 Hepatitis E Acute INFLAMMATION of the LIVER in humans; caused by HEPATITIS E VIRUS, a non-enveloped single-stranded RNA virus. Similar to HEPATITIS A, its incubation period is 15-60 days and is enterically transmitted, usually by fecal-oral transmission. Enterically-Transmitted Non-A, Non-B Hepatitis,Epidemic Non-A, Non-B Hepatitis,Hepatitis, Viral, Non-A, Non-B, Enterically-Transmitted,Hepatitis, Water-Borne,ET-NANBH,Enterically Transmitted Non A, Non B Hepatitis,Epidemic Non A, Non B Hepatitis,Hepatitides, Water-Borne,Hepatitis, Water Borne,Water-Borne Hepatitides,Water-Borne Hepatitis
D016752 Hepatitis E virus A positive-stranded RNA virus species, causing enterically-transmitted non-A, non-B hepatitis (HEPATITIS E). Hepatitis E virus (strain Burma),Orthohepevirus A,Paslahepevirus,Paslahepevirus balayani,Paslahepeviruses

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