A pink colony on MAC grew from an abdominal wound. The biochemical reactions included:
TSI A/A H2S 37?C SIM +/—/+ 25?C SIM +/—/+
MR/VP +/— Citrate + PAD —
Urea — ONPG + Arginine +
Lysine — Ornithine —
The organism identified is
A) serologically similar to Salmonella spp.
B) able to produce only a small amount of H2S in TSI.
C) characterized by the production of the Vi antigen.
D) often found hiding in the gallbladder in carriers.
A
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