**Question:** Incubation period of Staphylococcus aureus food poisoning: March 2013

**Core Concept:** The incubation period is the time from exposure to the pathogen to the onset of symptoms. In the context of food poisoning caused by Staphylococcus aureus, understanding the incubation period helps in estimating the time frame when the contaminated food was prepared or consumed.

**Why the Correct Answer is Right:** The correct answer is not provided as the question seems to be asking for the wrong year (March 2013). However, the incubation period for Staphylococcus aureus food poisoning depends on the strain and method of contamination. It typically ranges from 4 to 24 hours, with an average of around 6 to 8 hours. The incubation period is relatively short in comparison to other foodborne illnesses like Salmonella, which can have an incubation period of 6-72 hours.

**Why Each Wrong Option is Incorrect:**

A. This option is incorrect because it refers to a wrong year (March 2013), making it irrelevant to the question.
B. This option is incorrect as it doesn't address the actual incubation period of Staphylococcus aureus food poisoning.
C. This option is incorrect as it provides an incorrect range (4-48 hours) for the incubation period.
D. This option is incorrect as it refers to a wrong year (March 2013), making it irrelevant to the question.

**Clinical Pearl:** Understanding the incubation period of food poisoning caused by Staphylococcus aureus is crucial for public health officials and food handlers to implement preventive measures and trace the source of contamination effectively. However, the actual incubation period may vary depending on the strain and method of contamination. In general, it ranges from 4 to 24 hours, with an average of around 6 to 8 hours.