The way by which a bacterium can be normal and beneficial, but also be pathogenic. Concept introduction: Propionibacterium is a gram-positive, small and rod-shaped diphtheroids commonly occurring on the skin. They can be trapped by hair follicles in the skin.

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Chapter 19, Problem 9CT

Summary Introduction

To determine:

The way by which a bacterium can be normal and beneficial, but also be pathogenic.

Concept introduction:

Propionibacterium is a gram-positive, small and rod-shaped diphtheroids commonly occurring on the skin. They can be trapped by hair follicles in the skin.

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Propionibacterium acnes is a normal member of the skin microbiome that benefits the body by lowering the skin's pH- an antimicrobial effect. However, P. acnes is also the leading cause of acne. Explain mechanistically how can a bacterium be part of the normal microbiome and beneficial but also be pathogenic?

Direct contact with pathogenic microorganisms is the most common cause of hospital-acquired infection. How might a dermal (skin) Staphylococcus infection of a staff member result in a urinary traction infection of a patient? Describe possible pathways of contamination during a normal workday.

Why can Koch’s postulates not be used to identify the causes of diseases due to polymicrobial infections?

Answer 2

Question

Chapter 19, Problem 9CT

Summary Introduction

To determine:

The way by which a bacterium can be normal and beneficial, but also be pathogenic.

Concept introduction:

Propionibacterium is a gram-positive, small and rod-shaped diphtheroids commonly occurring on the skin. They can be trapped by hair follicles in the skin.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 19, Problem 9CT

Summary Introduction

To determine:

The way by which a bacterium can be normal and beneficial, but also be pathogenic.

Concept introduction:

Propionibacterium is a gram-positive, small and rod-shaped diphtheroids commonly occurring on the skin. They can be trapped by hair follicles in the skin.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 19, Problem 9CT

Summary Introduction

To determine:

The way by which a bacterium can be normal and beneficial, but also be pathogenic.

Concept introduction:

Propionibacterium is a gram-positive, small and rod-shaped diphtheroids commonly occurring on the skin. They can be trapped by hair follicles in the skin.

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 5

Chapter 19, Problem 9CT

Summary Introduction

To determine:

The way by which a bacterium can be normal and beneficial, but also be pathogenic.

Concept introduction:

Propionibacterium is a gram-positive, small and rod-shaped diphtheroids commonly occurring on the skin. They can be trapped by hair follicles in the skin.

Answer 6

Chapter 19, Problem 9CT

Summary Introduction

To determine:

The way by which a bacterium can be normal and beneficial, but also be pathogenic.

Concept introduction:

Propionibacterium is a gram-positive, small and rod-shaped diphtheroids commonly occurring on the skin. They can be trapped by hair follicles in the skin.

Answer 7

Chapter 19, Problem 9CT

Summary Introduction

To determine:

The way by which a bacterium can be normal and beneficial, but also be pathogenic.

Concept introduction:

Propionibacterium is a gram-positive, small and rod-shaped diphtheroids commonly occurring on the skin. They can be trapped by hair follicles in the skin.

Answer 8

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Answer 9

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Answer 10

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Answer 11

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The way by which a bacterium can be normal and beneficial, but also be pathogenic. Concept introduction: Propionibacterium is a gram-positive, small and rod-shaped diphtheroids commonly occurring on the skin. They can be trapped by hair follicles in the skin.

Solution Summary: The author explains that Propionibacterium is a gram-positive, rod-shaped diphtheroids commonly occurring on the skin. They produce propionic acid, vitamin B12, tetrapyrote

Videos

To determine:

The way by which a bacterium can be normal and beneficial, but also be pathogenic.

Concept introduction:

Propionibacterium is a gram-positive, small and rod-shaped diphtheroids commonly occurring on the skin. They can be trapped by hair follicles in the skin.

Want to see the full answer?

Chapter 19 Solutions

The way by which a bacterium can be normal and beneficial, but also be pathogenic. Concept introduction: Propionibacterium is a gram-positive, small and rod-shaped diphtheroids commonly occurring on the skin. They can be trapped by hair follicles in the skin.

Solution Summary: The author explains that Propionibacterium is a gram-positive, rod-shaped diphtheroids commonly occurring on the skin. They produce propionic acid, vitamin B12, tetrapyrote

Videos

To determine: The way by which a bacterium can be normal and beneficial, but also be pathogenic. Concept introduction: Propionibacterium is a gram-positive, small and rod-shaped diphtheroids commonly occurring on the skin. They can be trapped by hair follicles in the skin.

Want to see the full answer?

Chapter 19 Solutions

To determine:

The way by which a bacterium can be normal and beneficial, but also be pathogenic.

Concept introduction:

Propionibacterium is a gram-positive, small and rod-shaped diphtheroids commonly occurring on the skin. They can be trapped by hair follicles in the skin.