Question:
Which of the following bacteria is known to be an indicator of Personnel hygiene?
Which of the following bacteria is known to be an indicator of Personnel hygiene?
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Because Staphylococcus aureus resides naturally on human skin, its presence in processed dairy products points directly to poor hand-washing and hygiene practices by plant workers.
Updated On: Jul 8, 2026
- Staphylococcus aureus
- Streptococcus pyogenes
- Mycobacterium tuberculosis
- Propionibacterium freudenreichii
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
Indicator organisms are used to evaluate the microbiological safety, quality, and hygienic conditions of food processing and handling practices.
Step 2: Detailed Explanation:
- {Staphylococcus aureus is a common bacterium found on human skin, hands, and in the nasal passages of healthy individuals.
- If food or dairy products are contaminated with high levels of S. aureus, it indicates direct contact with human skin or respiratory droplets during handling.
- Therefore, S. aureus is used as a reliable indicator of poor personnel hygiene and improper handling practices during food processing.
- Mycobacterium tuberculosis indicates zoonotic transmission from infected cows, and Propionibacterium is a beneficial cheese starter culture.
Step 3: Final Answer
Staphylococcus aureus is used as an indicator of personnel hygiene.
Indicator organisms are used to evaluate the microbiological safety, quality, and hygienic conditions of food processing and handling practices.
Step 2: Detailed Explanation:
- {Staphylococcus aureus is a common bacterium found on human skin, hands, and in the nasal passages of healthy individuals.
- If food or dairy products are contaminated with high levels of S. aureus, it indicates direct contact with human skin or respiratory droplets during handling.
- Therefore, S. aureus is used as a reliable indicator of poor personnel hygiene and improper handling practices during food processing.
- Mycobacterium tuberculosis indicates zoonotic transmission from infected cows, and Propionibacterium is a beneficial cheese starter culture.
Step 3: Final Answer
Staphylococcus aureus is used as an indicator of personnel hygiene.
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