| nosocomial outbreak of respiratory tract colonization with mycobacterium fortuitum: demonstration of the usefulness of pulsed-field gel electrophoresis in an epidemiologic investigation. | between august 1989 and january 1990, 16 patients on an alcoholism rehabilitation ward (arw) developed positive sputum cultures for mycobacterium fortuitum. during a 2-wk surveillance period, six of 43 arw patients but none of 20 staff members had positive sputum cultures. in addition, none of 54 patients and staff on an adjacent ward sharing the same ice machine and water supply had positive cultures, and none of 92 acid-fast bacilli cultures performed on all sputum specimens from all other inp ... | 1991 | 1952447 |