Fifty-nine different bacteria were identified. Strict anaerobes were found including 27 anaerobic Gram-negative bacteria (24 rods, 3 cocci), 23 anaerobic Gram-positive bacteria (19 rods, 4 cocci); 8 ...

Small, hydrophilic molecules, including most important antibiotics in clinical use, cross the Gram-negative outer membrane through the water-filled channels provided by porins. We have determined the ...