infection (2) Patients (2) Infection (2) Blood donors (2) Patients (2) virologie (1) enquête (1) ressources (1) région (1) santé publique (1) surveillance (1) microbiologie (1) immunologie (1) test immunologique (1) immunité (1) santé (1) demi-vie (1) enrichissement (1) effet (1) maladie (1) classification (1) adulte (1) abords (agglomération) (1) jeune (1) Zurich (1) Monitoring (1) Complications (1) Hepatitis E (1) Genes (1) Weights and measures (1)