Provided herein are systems and methods for the prediction of recurrent cancer in a subject and systems and methods for using the prediction in the treatment or prevention of cancer recurrence.

A method for determining a presence of inflammatory bowel disease in a subject. The method involves providing a gut sample obtained from a subject; measuring a level in said gut sample of one or more proteins, wherein said one or more proteins comprises at least one of: leukotriene A-4 hydrolase, catalase, transketolase, thioredoxin domain containing protein 17, vasodilator-stimulated phosphoprotein and thymosin beta-10; and comparing said measured level of each of said one or more proteins to a corresponding protein level for a normal subject. A method for determining a presence of pancolitis in a subject with ulcerative colitis is also provided.

The present disclosure relates generally to compositions, methods, devices, and systems for the diagnosis of tuberculosis in a subject. Also described is the development of direct ELISA systems for detecting IgG against specific sequences, such as SEQ ID NO: 1, SEQ ID NO: 12 (TKT?; DLSSEVATHQPIIACLP), SEQ ID NO: 3 (TKT1; GEDGPTHQPIEHLSA), or SEQ ID NO: 5 (TKT3; HDSIGLGEDGPTHQPIEHLS).