Distinguishing active HIV-1 infection from vaccine-induced seropositivity in HIV vaccine trial participants.

ABSTRACT: Vaccine-induced seropositivity (VISP) causes antibodies produced by HIV-1 vaccines to react with standard serological tests, complicating diagnosis and leading to false positives. To distinguish VISP from true HIV infections, we developed a rapid, multiplexed companion electrochemical assay that integrates a three-dimensional-printed device with screen-printed electrodes coated with antigen, antibody, and methylene blue-labeled antisense oligonucleotide probes. The test delivers quantitative results within 5 minutes with calculated analytical limits of detection of 5.88 picograms per milliliter for p24 antigen, 10.96 picograms per milliliter for anti-p24 antibody, and 1259 copies per milliliter for HIV-1 RNA, with minimal cross-reactivity. Clinical testing with 104 plasma samples obtained

SUBMITTER: Dighe K 

PROVIDER: S-EPMC12674122 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature