Which of the following is true about food-borne infections (not food-borne intox

Question

Which of the following is true about food-borne infections (not food-borne intoxication)?
A. Requires the growth of the organism prior to illness.
B. Only associated with fungal-mediated contamination.
C. Symptoms typically occur shortly (within hours) after ingestion of the food
D. Both A and C.

True or False: Microbes taken up by phagocytosis are cleared using reactive oxygen species (ROS) or lytic enzymes, never both.

Which of the following is an example of directed evolution?

A. Protoplast fusion

B. UV irradiation

C. Site-directed mutagenesis
D. All of the Above

A direct ELISA ________.

A. detects the presence of a pathogen in the patient by looking for the presence of patient-derived antibodies against that pathogen
B. involves coating the plate with a known antigen first
C. involves coating the plate with a known antibody first to detect protein of the pathogen in the patient

D. A and B

Explanation / Answer

1. A. Requires the growth of the organism prior to illness.

Foodborne infections are also caused by bacteria like Salmonella, Listeria etc and it takes hours to days to manifest the symptoms in foodborne infections.

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