International collaborative study on the 3rd WHO International Standard for hepatitis B surface antigen
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چکیده
منابع مشابه
A collaborative study to establish the 3rd WHO International Standard for hepatitis B virus for nucleic acid amplification techniques.
Nucleic acid amplification techniques (NAT) are routinely used for clinical diagnostics and monitoring hepatitis B virus (HBV) infections, and are implemented on a voluntary basis for blood screening. A collaborative study was performed to evaluate a replacement WHO International Standard for HBV for the standardization of NAT. Two lyophilised HBV candidates were evaluated by 16 laboratories wo...
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An international collaborative study was organised to establish the World Health Organization (WHO) 3rd International Standard (IS) for dihydrostreptomycin. Eleven laboratories from different countries participated in the collaborative study. The potency of the candidate batch, a freeze-dried preparation, was estimated by microbiological assays with sensitive microorganisms. To ensure continuit...
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The World Health Organization (WHO) international standard (IS) for hepatitis B virus (HBV) DNA for use in nucleic acid amplification assays was characterized by determining the complete genome sequence, which was assigned genotype A. This information will aid the design, development, and evaluation of HBV DNA amplification assays.
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An international collaborative study was organised by the European Directorate for the Quality of Medicines & HealthCare (EDQM) to establish the WHO second International Standard (IS) for amphotericin B as the stocks of the 1st IS, established in 1963, were close to depletion. The candidate material did not show any sign of potency loss when kept at elevated temperatures of + 4 degrees C, + 20 ...
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An ampouled preparation of human atrial natriuretic factor, ANF-(99-126), was evaluated by 23 laboratories in 10 countries for its suitability to serve as the international standard for ANF. The preparation was calibrated by radioimmunoassay, radioreceptor binding assay, and bioassay and was shown to have satisfactory stability and biological activity. Estimates of the ANF content of a set of s...
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ژورنال
عنوان ژورنال: Journal of Clinical Virology
سال: 2016
ISSN: 1386-6532
DOI: 10.1016/j.jcv.2016.06.003