Question

Ingestion of pre formed toxins already synthesized in the food brings about poisoning syndrome in consumer called;

• A. Food Infection
• B. Food Intoxication
• C. Toxi-Infection
• D. Immune deficiency

Hint:

A rapid onset of symptoms (within 1 to 6 hours) after consumption is a key indicator of food intoxication, as the toxins are already active and do not require bacterial incubation in the gut.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Foodborne diseases are classified by their pathogenic mechanism: foodborne infections, foodborne intoxications, or toxi-infections.

Step 2: Detailed Explanation:
Food intoxication (or food poisoning) occurs when a host consumes food containing toxins that were pre-formed and secreted by microorganisms during growth in the food matrix.
The ingestion of viable microbial cells is not required to produce symptoms, as the pre-formed chemical toxin causes the illness.
Because the toxins are already active upon ingestion, the onset of symptoms is typically rapid, often within 1 to 6 hours.
Examples of food intoxication include:
Staphylococcal food poisoning, caused by heat-stable enterotoxins produced by Staphylococcus aureus.
Botulism, caused by neurotoxins produced under anaerobic conditions by Clostridium botulinum.
In contrast:
Food infection requires the ingestion of viable pathogenic cells that survive digestion, colonize, and invade the host tissues (e.g., Salmonella spp.).
Toxi-infection requires the ingestion of viable cells that subsequently produce enterotoxins within the host's intestinal tract (e.g., Clostridium perfringens).
Immune deficiency is a physiological state of reduced immunity and not a foodborne syndrome.

Step 3: Final Answer:
Therefore, the ingestion of pre-formed toxins is classified as food intoxication.