Patent ID: 9744245
Date: 2017-08-29
CPC Classifications: A61K,G01N

Claim:
1. A method of detecting in a sample the presence of an anti-M and/or anti-A and/or anti-C/Y antibody, the method comprising contacting the sample with a diagnostic conjugate comprising an oligosaccharide which consists of 2-15 units of 4,6-dideoxy-4-acylamido-α-pyranose, wherein at least two 4,6-dideoxy-4-acylamido-α-pyranose units are linked with a -(1-3)- link, in which the carbon at position 5 in the pyranose is linked to an R group, where R is independently selected from —CH 2 OH, —H or an alkyl group having at least one C atom, the oligosaccharide being covalently linked to a non-saccharide molecule or to a solid entity, wherein detection of binding of an antibody in the sample to the diagnostic conjugate is indicative of the presence in the sample of an anti-M and/or anti-A and/or anti-C/Y antibody.