A compound, or a pharmaceutically acceptable salt, ester, hydrate or solvate thereof, comprising formula I: A-B wherein A comprises a carbohydrate that is a neuraminidase or galactosidase substrate; B comprises an odorant moiety; B is covalently bonded to an anomeric carbon of A; and A is enzymatically cleavable from B at the covalent bond site between A and B. Also disclosed are methods for detecting a pathogen with neuraminidase activity or galactosidase activity that include contacting the compound with a sample that may include the pathogen.
ACKNOWLEDGMENT OF GOVERNMENT SUPPORT
 This invention was made with government support under Contract No. DE-AC52-06NA25396 between the United States Department of Energy and Los Alamos National Security, LLC for the operation of Los Alamos National Laboratory. The U.S. Government has certain rights in the invention.