| persistence and variability of stenotrophomonas maltophilia in cystic fibrosis patients, madrid, 1991-1998. | during 1991 to 1998 at least one stenotrophomonas maltophilia pulmonary infection was observed in 25 (24%) of 104 cystic fibrosis patients at the same unit of our hospital in spain. ribotyping and pulse-field gel electrophoresis (pfge) characterization of 76 s. maltophilia isolates from these patients indicated an overall clonal incidence of 47.1%, reflecting new strains in 44% of patients with repeated positive cultures for s. maltophilia. six patients with repeated episodes were persistently c ... | 2001 | 11266301 |