Diagnostic test for Streptococcus A
US4618576A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 1984 |
| Grant date | Oct 21, 1986 |
| Priority date | — |
| Expiry date | Feb 27, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/975
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The presence of Group A Streptococcus in a biological specimen is determined from the presence of Streptococcus A antigen. A biological specimen is collected with an applicator having a plastic stick with a rayon swab. The swab is placed in an extraction reagent containing enzymes produced by the bacterium Streptomyces albus, wherein the enzymes release the antigen from the fiber. An aliquot of the extraction medium is mixed with an indicator reagent containing an antibody reactive with the antigen. The occurrence or non-occurrence of an antibody-antigen reaction is noted which indicates the presence or absence of Group A Streptococcus in the biological specimen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.