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Division 3.3.5 F1

United Kingdom

NAT assays may be used to detect virus in antibody negative samples, i.e. pre-sero-conversion samples. Viruses within immune-complexes may behave differently in comparison to free viruses, for example during a centrifugation step. It is therefore important that during robustness studies, antibody-negative (pre-sero-conversion) samples are included.

Annotations

Textual amendments

F1: Substituted by Commission Decision of 27 November 2009 amending Decision 2002/364/EC on common technical specifications for in vitro diagnostic medical devices (notified under document C(2009) 9464) (Text with EEA relevance) (2009/886/EC).

Notes on Division 3

Textual amendments

F2: Substituted by Commission Implementing Decision (EU) 2019/1244 of 1 July 2019 amending Decision 2002/364/EC as regards requirements for HIV and HCV antigen and antibody combined tests and as regards requirements for nucleic acid amplification techniques with respect to reference materials and qualitative HIV assays (notified under document C(2019) 4632) (Text with EEA relevance).
F3: Words in Annex Table 1 substituted (E.W.S.) (11.8.2021) by The Medical Devices (Amendment) (EU Exit) Regulations 2021 (S.I. 2021/873), reg. 1(1), Sch. 2 para. 3(d)
F4: Inserted by Commission Decision of 20 December 2011 amending Decision 2002/364/EC on common technical specifications for in vitro diagnostic medical devices (notified under document C(2011) 9398) (Text with EEA relevance) (2011/869/EU).

Editorial notes

X1: Substituted by Corrigendum to Commission Decision 2009/886/EC of 27 November 2009 amending Decision 2002/364/EC on common technical specifications for in vitro diagnostic medical devices (Official Journal of the European Union L 318 of 4 December 2009).

Footnotes

f1: European Pharmacopoeia guideline.
f2: Acceptance criteria no neutralisation for HBsAg confirmatory assay.
f3: The total number of seroconversion panels for combined Ag/Ab assays (from tables 1 and 5) need not be greater than 30.