bacterial infectious disease disseminated atypical mycobacterial infection Atypical mycobacterial infections are infections caused by several types ofmycobacteria similar to the germ that causes tuberculosis. These atypical mycobacterial infections are a frequent complication in patients with human immunodeficiency virus (HIV) infection or AIDS. SNOMEDCT:240413000 Sirarat Sarntivijai http://medical-dictionary.thefreedictionary.com/Atypical+Mycobacterial+Infections