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A Stable Dried Tube Specimen for Quality Assurance and Training Programs for HIV Rapid Test for Recent Infection

The HIV epidemic is still one of the world’s most serious public health challenges, affecting about 38 million people worldwide, especially in sub-Saharan African and Southeast Asian countries. In recent years, tests have been developed to discriminate recent from long-term infection in HIV-infected...

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Autores principales: Di Germanio, Clara, Yufenyuy, Ernest L., Hampton, Dylan C., Thorbrogger, Chloe, Parekh, Bharat S., Norris, Philip J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Society for Microbiology 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9927143/
https://www.ncbi.nlm.nih.gov/pubmed/36648237
http://dx.doi.org/10.1128/spectrum.03398-22
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author Di Germanio, Clara
Yufenyuy, Ernest L.
Hampton, Dylan C.
Thorbrogger, Chloe
Parekh, Bharat S.
Norris, Philip J.
author_facet Di Germanio, Clara
Yufenyuy, Ernest L.
Hampton, Dylan C.
Thorbrogger, Chloe
Parekh, Bharat S.
Norris, Philip J.
author_sort Di Germanio, Clara
collection PubMed
description The HIV epidemic is still one of the world’s most serious public health challenges, affecting about 38 million people worldwide, especially in sub-Saharan African and Southeast Asian countries. In recent years, tests have been developed to discriminate recent from long-term infection in HIV-infected populations, and these tools can help identify new outbreaks and networks of transmission and target prevention and treatment plans. New rapid tests for recent infection are being deployed in point-of-care settings; however, quality assurance programs need to be implemented to ensure consistency and reliability of the results. We have developed a dried tube specimen (DTS) stabilized with disaccharide trehalose as a quality control reagent for rapid recency testing that can be stored unrefrigerated prior to reconstitution at temperatures up to 37°C for up to 12 weeks. Analysis of 10 trehalose-stabilized DTSs showed that they maintained the same recency classification in all of the samples stored at 4°C and 37°C up to 12 weeks and at 56°C for 2 weeks, while the DTSs prepared without trehalose changed their classification from long-term to recent or recent to negative after storage at 37°C for 12 weeks. Development of DTS quality control reagents will facilitate proficiency and training programs, particularly in settings without cold chain capability in field environments. IMPORTANCE Implementation of stabilized dried tube specimens (DTSs) for quality control and training would facilitate HIV recency programs, especially in point-of-care settings without cold chain availability. This study shows that addition of the disaccharide trehalose to DTSs prior to drying the samples increased stability of the samples across a range of temperatures. This finding provides an affordable way to increase the availability of these key reagents for quality control in resource-constrained settings.
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spelling pubmed-99271432023-02-15 A Stable Dried Tube Specimen for Quality Assurance and Training Programs for HIV Rapid Test for Recent Infection Di Germanio, Clara Yufenyuy, Ernest L. Hampton, Dylan C. Thorbrogger, Chloe Parekh, Bharat S. Norris, Philip J. Microbiol Spectr Research Article The HIV epidemic is still one of the world’s most serious public health challenges, affecting about 38 million people worldwide, especially in sub-Saharan African and Southeast Asian countries. In recent years, tests have been developed to discriminate recent from long-term infection in HIV-infected populations, and these tools can help identify new outbreaks and networks of transmission and target prevention and treatment plans. New rapid tests for recent infection are being deployed in point-of-care settings; however, quality assurance programs need to be implemented to ensure consistency and reliability of the results. We have developed a dried tube specimen (DTS) stabilized with disaccharide trehalose as a quality control reagent for rapid recency testing that can be stored unrefrigerated prior to reconstitution at temperatures up to 37°C for up to 12 weeks. Analysis of 10 trehalose-stabilized DTSs showed that they maintained the same recency classification in all of the samples stored at 4°C and 37°C up to 12 weeks and at 56°C for 2 weeks, while the DTSs prepared without trehalose changed their classification from long-term to recent or recent to negative after storage at 37°C for 12 weeks. Development of DTS quality control reagents will facilitate proficiency and training programs, particularly in settings without cold chain capability in field environments. IMPORTANCE Implementation of stabilized dried tube specimens (DTSs) for quality control and training would facilitate HIV recency programs, especially in point-of-care settings without cold chain availability. This study shows that addition of the disaccharide trehalose to DTSs prior to drying the samples increased stability of the samples across a range of temperatures. This finding provides an affordable way to increase the availability of these key reagents for quality control in resource-constrained settings. American Society for Microbiology 2023-01-17 /pmc/articles/PMC9927143/ /pubmed/36648237 http://dx.doi.org/10.1128/spectrum.03398-22 Text en Copyright © 2023 Di Germanio et al. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International license (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Research Article
Di Germanio, Clara
Yufenyuy, Ernest L.
Hampton, Dylan C.
Thorbrogger, Chloe
Parekh, Bharat S.
Norris, Philip J.
A Stable Dried Tube Specimen for Quality Assurance and Training Programs for HIV Rapid Test for Recent Infection
title A Stable Dried Tube Specimen for Quality Assurance and Training Programs for HIV Rapid Test for Recent Infection
title_full A Stable Dried Tube Specimen for Quality Assurance and Training Programs for HIV Rapid Test for Recent Infection
title_fullStr A Stable Dried Tube Specimen for Quality Assurance and Training Programs for HIV Rapid Test for Recent Infection
title_full_unstemmed A Stable Dried Tube Specimen for Quality Assurance and Training Programs for HIV Rapid Test for Recent Infection
title_short A Stable Dried Tube Specimen for Quality Assurance and Training Programs for HIV Rapid Test for Recent Infection
title_sort stable dried tube specimen for quality assurance and training programs for hiv rapid test for recent infection
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9927143/
https://www.ncbi.nlm.nih.gov/pubmed/36648237
http://dx.doi.org/10.1128/spectrum.03398-22
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