Abstract: Seroprotection analysis systems, kits, and techniques are described for testing oral fluid for the presence of protective levels of antibodies of interest. In one aspect, the presence of protective levels of target antibodies indicates a test subject has achieved a target seroprotection level, such as but not limited to a target seroprotection level following vaccination. A collection kit can include a swab that enables collection of oral fluid containing antibodies from both dentulous and edentulous individuals, a container that can be pre-filled with an extraction solution, and a nozzle that can be coupled to the container to form a fluid-tight device. A user can use the nozzle to seal the swab in the container and to compress the swab within the container.

Abstract: Lateral flow assay devices, systems, and methods described herein separate components of a fluid sample, including small volume, undiluted, unprocessed samples. In one aspect, components are retained in a separation membrane that is spatially above and in fluid communication with a conjugate pad of a lateral flow assay. Devices, systems, and methods described herein can retain particles from a fluid sample that obstruct flow of the fluid sample through the conjugate pad to a detection zone and/or interfere with detection of an analyte of interest in the detection zone.

Abstract: Seroprotection analysis systems, kits, and techniques are described for testing oral fluid for the presence of protective levels of antibodies of interest. In one aspect, the presence of protective levels of target antibodies indicates a test subject has achieved a target seroprotection level, such as but not limited to a target seroprotection level following vaccination. A collection kit can include a swab that enables collection of oral fluid containing antibodies from both dentulous and edentulous individuals, a container that can be pre-filled with an extraction solution, and a nozzle that can be coupled to the container to form a fluid-tight device. A user can use the nozzle to seal the swab in the container and to compress the swab within the container.

Abstract: Seroprotection analysis systems, kits, and techniques are described for testing oral fluid for the presence of protective levels of antibodies of interest. In one aspect, the presence of protective levels of target antibodies indicates a test subject has achieved a target seroprotection level, such as but not limited to a target seroprotection level following vaccination. A collection kit can include a swab that enables collection of oral fluid containing antibodies from both dentulous and edentulous individuals, a container that can be pre-filled with an extraction solution, and a nozzle that can be coupled to the container to form a fluid-tight device. A user can use the nozzle to seal the swab in the container and to compress the swab within the container.

Abstract: Seroprotection analysis systems, kits, and techniques are described for testing oral fluid for the presence of protective levels of antibodies of interest. In one aspect, the presence of protective levels of target antibodies indicates a test subject has achieved a target seroprotection level, such as but not limited to a target seroprotection level following vaccination. A collection kit can include a swab that enables collection of oral fluid containing antibodies from both dentulous and edentulous individuals, a container that can be pre-filled with an extraction solution, and a nozzle that can be coupled to the container to form a fluid-tight device. A user can use the nozzle to seal the swab in the container and to compress the swab within the container.