Abstract: The present invention provides a solid carrier capable of easily and accurately evaluating the activity of mycobacteriosis or the presence or absence of mycobacterial infection. The solid carrier for detecting mycobacteriosis or mycobacterial infection includes at least one probe including a polynucleotide consisting of a base sequence complementary to all or a part of a base sequence having 85% or more identity with respect to a base sequence set forth in SEQ ID NO: 1, which is immobilized on a surface thereof.