FSS Foodborne Illness 3

Question 1

Clostridium perfringens food poisoning is most often the result of:

Accepted Answer

Large batches of cooked meat cooled too slowly

Answer

Clostridium perfringens is a common cause of illness in catering settings when large quantities of cooked meat or poultry are cooled too slowly, allowing spores to germinate and multiply.

Question 2

What does 'infective dose' mean in the context of foodborne illness?

Accepted Answer

The minimum number of pathogens required to cause illness in a person

Answer

The infective dose is the minimum number of pathogenic organisms that must be ingested for a person to develop illness, and it varies significantly between pathogens and between individuals.

Question 3

Which symptom pattern is most characteristic of intoxication (toxin-caused) foodborne illness?

Accepted Answer

Rapid onset of vomiting and nausea within 1 to 6 hours

Answer

Because the toxin is already present in the food when consumed, intoxication typically produces symptoms very quickly — often within 1 to 6 hours — compared to infections that require the pathogen to multiply in the body.

Question 4

E. coli O157:H7 outbreaks are most commonly associated with which foods?

Accepted Answer

Undercooked ground beef and unpasteurised fruit juice

Answer

E. coli O157:H7 is frequently linked to undercooked ground beef and unpasteurised juices, as contamination can occur during processing without visible signs of spoilage.

Question 5

A food safety supervisor suspects a customer has developed foodborne illness after eating at their premises. What is the correct first action?

Accepted Answer

Notify the local council or food safety regulator and preserve food samples where possible

Answer

Reporting a suspected foodborne illness to the local council or food safety regulator is a legal requirement in most Australian jurisdictions, and preserving food samples supports any official investigation.

Food Safety Supervisor Practice Test

Food Safety Supervisor Practice Test

FSS Foodborne Illness 3