A significant number of Gram negative bacilli are isolated f…

A significant number of Gram negative bacilli are isolated from the urine of an otherwise healthy 23 year-old woman. The results of the biochemical analysis demonstrate: Phenylalanine deaminase = green after addition of FeCl3 Indole = red ring after Kovac’s Methyl red = red Voges-Proskauer = colorless Arginine dihydrolase = yellow Lysine decarboxylase = yellow Ornithine decarboxylase = yellow Decarboxylase base = yellow TSI = yellow slant, black butt The most likely genus and species of this organism is:

Both sets of blood cultures from a 44 year-old male patient…

Both sets of blood cultures from a 44 year-old male patient (post appendectomy) grew Gram negative bacilli from both the aerobic and anaerobic bottles after 18 hours incubation. Biochemical reactions demonstrate the following: MAC = pink donuts BAP = luxuriant growth TSI = acid / H2S Indole = negative Motility = positive Citrate = positive MR/VP = +/0 Ornithine = negative Lysine decarboxylase = negative PAD = negative The most likely genus and species of this organism is: