Screening for Human Immunodeficiency Virus Infection by Use of a Fourth-Generation Antigen/Antibody Assay and Dried Blood Spots: In-Depth Analysis of Sensitivity and Performance Assessment in a Cross-Sectional Study

Author:

Stefic Karl12ORCID,Guinard Jerome13,Peytavin Gilles4,Saboni Leïla5,Sommen Cécile5,Sauvage Claire5,Lot Florence5,Laperche Syria6,Velter Annie5,Barin Francis12ORCID

Affiliation:

1. Centre National de Référence du VIH, Laboratoire Associé, Centre Hospitalier Universitaire Bretonneau, Tours, France

2. Inserm U1259, Université de Tours, Tours, France

3. Laboratoire de Microbiologie, Centre Hospitalier Régional d’Orléans, Orléans, France

4. APHP, Laboratoire de Pharmacologie-Toxicologie et IAME, Inserm UMR 1137, Université Paris 7, Paris, France

5. Santé Publique France, Saint-Maurice, France

6. Département des Agents Transmissibles par le Sang, Centre National de Référence Risques Infectieux Transfusionnels, Institut National de La Transfusion Sanguine, Paris, France

Abstract

We evaluated the performance of a fourth-generation antigen/antibody (Ag/Ab) assay for detecting HIV-1 infection on dried blood spots (DBS) both in a conventional laboratory environment and in an epidemiological survey corresponding to a real-life situation. Although a 2-log loss of sensitivity compared to that with plasma was observed when using DBS in an analytical analysis, the median delay of positivity between DBS and crude serum during the early phase postacute infection was 7 days.

Funder

Agence Nationale de Recherche sur le Sida et les Hepatites Virales

Santé Publique France

Publisher

American Society for Microbiology

Subject

Microbiology (medical)

Reference36 articles.

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3. Dried fluid spots for HIV type-1 viral load and resistance genotyping: a systematic review;Hamers RL;Antivir Ther,2009

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5. The use of the dried blood spot sample in epidemiological studies

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