In vitro diagnostics and laboratory technology

Hepatitis B test kit evaluations

Infection with the Hepatitis B virus is characterised by the appearance of certain viral markers including Hepatitis B surface Antigen (HBsAg) in the blood. It is recommended that all blood donations are tested for this marker to avoid transmission to recipients.

Report 2

Laboratory diagnosis of Hepatitis B infection centres on the detection of HBsAg, as the most important means for ensuring blood safety. Positive test reactions are then confirmed by retesting with a neutralization assay.

Composition of the panel

HBsAg test kit evaluations are carried out by the WHO Collaborating Centre-Health Protection Agency, London, UK on the WHO HBsAg reference panel of stored serum/plasma specimens of geographically diverse origin, seroconversion panels and low titer panels.

Past evaluations

A total of 18 assays to detect HBsAg have been evaluated by WHO, 13 of these were tests of simple/rapid format. Many of these tests are being produced in countries with transient economies and have not been licensed by well known regulatory authorities.

Guidance document

Related documents

Related links

External web sites

EMERGENCY USE ASSESSMENT AND LISTING (EUAL) PROCEDURE


Request for Proposals

22 MARCH 2017

The Prequalification Team is publishing a request for proposals for consultancy services relating to - developing and maintaining the Quality Management Systems (QMS) and assuming the responsibility for on-going system maintenance and effectiveness of operations within the Prequalification Team.

The services required by the World Health Organization (WHO) are more fully described in the below attached Terms of Reference and Request for Proposals.

Proposals should be submitted to WHO in writing no later than 5 April 2017 at 17:00 hours Geneva time ("the closing date"), by email at the following address: mubangizid@who.int

ESSENTIAL MEDICINES AND HEALTH PRODUCTS


Contact us

Prequalification Team - Diagnostics
Regulation of Medicines and other Health Technologies
Department of Essential Medicines and Health Products
(HIS/EMP/RHT/PQT)
World Health Organization
20 Avenue Appia
1211, Geneva 27
Switzerland
diagnostics@who.int