Stimati cititori, va reamintim ca autorii primi ai articolelor stiintifice pot acumula 80 de credite EMC in urma publicarii. Daca un articol are mai multi autori, cele 80 de credite [...]
Starting with 2016, The Romanian National Society of Infectious Diseases offers Society’s Prize – for the authors who published the best scientific articles [...]
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A forum for responsible and ethical research publishing – Code of Conduct and Best Practice Guidelines for Journal Editors.
WORLD HEALTH ORGANIZATION INTERNATIONAL STANDARD TO HARMONIZE ASSAYS FOR DETECTION OF HEPATITIS E VIRUS RNA
Nucleic acid amplification technique-based assays are a primary method for the detection of acute hepatitis E virus (HEV) infection, but assay sensitivity can vary widely. To improve interlaboratory results for the detection and quantification of HEV RNA, a candidate World Health Organization (WHO) International Standard (IS) strain was evaluated in a collaborative study involving 23 laboratories from 10 countries. The IS, code number 6329/10, was formulated by using a genotype 3a HEV strain from a blood donation, diluted in pooled human plasma and lyophilized. A Japanese national standard, representing a genotype 3b HEV strain, was prepared and evaluated in parallel. The potencies of the standards were determined by qualitative and quantitative assays. Assay variability was substantially reduced when HEV RNA concentrations were expressed relative to the IS. Thus, WHO has established 6329/10 as the IS for HEV RNA, with a unitage of 250,000 International Units per milliliter.