Sarah’s science fair experiment focused on whether spices in the diet influenced

Question

Sarah’s science fair experiment focused on whether spices in the diet influenced the microbial flora (or microbiota) of the skin. She had heard that garlic supposedly had health benefits and knew that it changed skin odor – did it also change the skin ecosystem? She enlisted the help of her science class and a large group of friends to be test subjects. All were asked to refrain from eating foods with garlic for a week. Then cultures were taken from their skin in various regions of their bodies. With this background information in hand, Sarah encouraged half the group (the test subjects) to eat as much garlic as they could over the next week. The other half of the group comprised the control subjects. At the conclusion of the test period, this organism was isolated from the axillary (armpit) regions of both control and test subjects.

Please don't explain why there was no difference in the test and control subjects. I already understand that. I am asking...

Indicate exactly where within the respiratory system the organism was causing the problems associated with the disease described in the Case study.

Explanation / Answer

Answer:

Staphylococcus Aureus is a Gram-positive bacteria, coccus shaped, facultative anaerobic bacteria, grows in the absence of oxygen and also in presence of oxygen. Staphylococcus is able to survive on the skin due to its adaptability under high osmotic pressure and also in low moisture. These bacteria are present nearly around 20-30% in all human individuals under the skin as a normal flora, it also causes the respiratory tract infections apart from the skin infections.

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