Rapid lateral flow assay for determining exposure to Mycobacterium tuberculosis and other mycobacteria
US6841159B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 30, 2002 |
| Grant date | Jan 11, 2005 |
| Priority date | — |
| Expiry date | Feb 11, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2469/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An assay method and kit is disclosed for detecting the presence of at least one predesignated, target antibody to a mycobacterium in a sample selected from one or more patient bodily fluids. The method comprises the following steps: (a) contacting the sample of one or more patient bodily fluids with at least one mycobacterium antigen on a lateral-flow assay membrane to bind to the target antibody in the sample; (b) previously, simultaneously or subsequently to step (a), binding the at least one mycobacterium antigen with a conjugated label producing a detectable signal; and (c) detecting the signal whereby the presence of the target antibody is determined in the sample by the intensity or presence of the signal. The method can further comprise the step of evaluating immunization status of the patient from whom the sample came by comparing the signal or lack thereof with immunizations previously received by the patient and in comparison to a known standard control. In a preferred embodiment, the mycobacterium antigen specifically binds to Mycobacterium tuberculosis specific antibodies. Preferably, the immunoassay of the present invention comprises a lateral-flow assay comprising a m…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.