FIG. 1.

PFGE profiles of MRSA isolated from blood and nonblood specimens. Genomic DNA of MRSA strains was digested with restriction enzyme SmaI. Samples were ordered by set of blood isolate and nonblood isolate(s) from each patient. Lanes 1, 6, 10, 13, and 15 are blood isolates from various patients. Lanes 2 to 5 are isolates from sputum, the tip of a central venous catheter, pus, and feces from patient A, respectively. Lanes 7 to 9 are isolates from sputum and nasal and throat swabs from patient B, respectively. Lanes 11 and 12 are isolates from the tip of a central venous catheter and sputum from patient C, respectively. Lane 14 is an isolate from pus from patient D. Lanes 16 to 18 are isolates from pus, sputum, and a throat swab from patient E, respectively. M, molecular size marker.