<p>An iodo-complex having a sustained release ability for iodine, comprising (A) an inorganic carrier having a BET specific surface area of from 80 to 800 m<2>/g and a pore volume of from 0.2 to 2.3 ml/g as measured by the nitrogen adsorption method, and (B) an iodophor carried by said inorganic carrier. The iodo-complex gradually releases iodine in a sustained manner while suppressing its specific odor. The invention further deals with an antibacterial agent comprising the iodo-complex as a chief component and exhibiting a broad antibacterial spectrum.</p>
