* Infectious Disease Division, Winthrop-University Hospital, 259 First Street, Mineola, NY 11501. Gram-negative aerobic bacilli Escherichia coli Klebsiella pneumoniae Pseudomonas aeruginosa Gram-positive aerobic bacilli Corynebacterium sp Lactobacillus sp Methicillin-sensitive Staphylococcus aureus and methicillin-resistant Staphylococcus aureus bacteremias