title: Nontuberculous mycobacterial trends at the Veterans Administration Medical Center in Oklahoma City.
abstract: Laboratory culture results, dating back to 1960, were reviewed at the Veterans Administration Medical Center in Oklahoma City. Nontuberculous mycobacterial incidence increased substantially during the 21-year period as tuberculosis incidence decreased. Nontuberculous mycobacteria were found to represent 13.7% of all mycobacterial isolates, with Mycobacterium kansasii and M intracellulare-avium complex the predominant species. When the dates of first positive cultures were evaluated, a significant month-to-month variation was found in M tuberculosis but not nontuberculous mycobacteria, suggesting a different mode of transmission for the two. There was no significant difference in the racial distribution or age of individuals with nontuberculous mycobacteria.
mesh_terms: D000367:Age Factors; D006787:Hospitals, Veterans; D006801:Humans; D008297:Male; D008875:Middle Aged; D009161:Mycobacterium / Q000302:isolation & purification*; D009170:Nontuberculous Mycobacteria / Q000302:isolation & purification*; D009825:Oklahoma; D012621:Seasons