A Gram-positive psychrotrophic rod ________ is a frequent contaminant of dairy products and meat and an opportunistic pathogen of the immunocompromised.
A) Escherichia coli
B) Helicobacter pylori
C) Clostridium perfringens
D) Bacillus thuringiensis
E) Listeria monocytogenes

Question

Quizplus · Accepted Answer

Listeria monocytogenes is a Gram-positive psychrotrophic rod that is commonly found in dairy products and meat. It can also be an opportunistic pathogen in immunocompromised individuals, causing infections such as meningitis, sepsis, and encephalitis. Escherichia coli is a Gram-negative bacterium that is commonly found in the gastrointestinal tract of humans and animals and can be pathogenic. Helicobacter pylori is a Gram-negative bacterium that is associated with stomach ulcers and gastritis. Clostridium perfringens is a Gram-positive spore-forming bacterium that can cause food poisoning, gas gangrene, and other infections. Bacillus thuringiensis is a Gram-positive soil bacterium that is commonly used as a biological pesticide.

A Gram-Positive Psychrotrophic Rod ________ Is a Frequent Contaminant of Dairy