Normal Human Microbiota Chapter 7 Preview
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Questions and Answers

What are the two main categories that the normal flora in humans typically fall into?

Resident flora and transient flora

Give an example of a resident flora found in the intestine.

Escherichia coli

What is the term used to describe the diverse group of microbial population that every human being harbors on their skin and mucous membranes?

Normal microbial flora

What happens if the resident flora gets disturbed due to any reasons?

<p>Transient flora may colonize and produce disease</p> Signup and view all the answers

Which group of microorganisms can patients in hospitals acquire as transient flora from healthcare workers and the hospital environment?

<p>Resistant organisms</p> Signup and view all the answers

What is the acronym for Methicillin-resistant Staphylococcus aureus?

<p>MRSA</p> Signup and view all the answers

What term is used to describe microorganisms that inhabit the body surface or mucous membranes temporarily for a short interval?

<p>Transient flora</p> Signup and view all the answers

Name two multidrug-resistant gram-negative organisms that can be found in the respiratory tract.

<p>Klebsiella and Escherichia coli</p> Signup and view all the answers

What factors influence the presence of normal flora in a body site?

<p>Local temperature, moisture, pH, environmental flora, immunity, anatomical site</p> Signup and view all the answers

What factors can affect the uniqueness of a human virome?

<p>Age, life style, diet, pre-existing immunity, geographic location, seasonal variation</p> Signup and view all the answers

What is the virome?

<p>The collection of viruses in and on the human body</p> Signup and view all the answers

What is a skin virome and give an example of viruses that colonize the human skin?

<p>Skin virome refers to viruses that colonize the human skin. Examples include human papillomavirus and bacteriophages.</p> Signup and view all the answers

How do viruses evolve in the human virome?

<p>Rapidly</p> Signup and view all the answers

Can life be sustained without normal flora?

<p>Yes</p> Signup and view all the answers

What is the total population of normal flora in humans in terms of bacteria count?

<p>$10^{14}$ bacteria</p> Signup and view all the answers

Which type of flora dominates over the other in terms of anaerobic and aerobic bacteria?

<p>Anaerobic flora dominates over aerobes</p> Signup and view all the answers

What technological advancement has made it possible to gather information about human viral microbiota?

<p>Deep sequencing technique</p> Signup and view all the answers

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