To answer: The reason that scientists had problems identifying virulence factors of Treponema pallidum. Introduction: Treponema pallidum causes syphilis. This spirochete has helical cells that are so narrow that they are difficult to observe by a regular light microscope with Gram-staining. Therefore, scientists use either dark-field microscopy or phase contrast microscopy or special stains to increase contrast.

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Chapter 24, Problem 5SA

Summary Introduction

To answer:

The reason that scientists had problems identifying virulence factors of Treponema pallidum.

Introduction:

Treponema pallidum causes syphilis. This spirochete has helical cells that are so narrow that they are difficult to observe by a regular light microscope with Gram-staining. Therefore, scientists use either dark-field microscopy or phase contrast microscopy or special stains to increase contrast.

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Question

Chapter 24, Problem 5SA

Summary Introduction

To answer:

The reason that scientists had problems identifying virulence factors of Treponema pallidum.

Introduction:

Treponema pallidum causes syphilis. This spirochete has helical cells that are so narrow that they are difficult to observe by a regular light microscope with Gram-staining. Therefore, scientists use either dark-field microscopy or phase contrast microscopy or special stains to increase contrast.

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Answer 3

Question

Chapter 24, Problem 5SA

Summary Introduction

To answer:

The reason that scientists had problems identifying virulence factors of Treponema pallidum.

Introduction:

Treponema pallidum causes syphilis. This spirochete has helical cells that are so narrow that they are difficult to observe by a regular light microscope with Gram-staining. Therefore, scientists use either dark-field microscopy or phase contrast microscopy or special stains to increase contrast.

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Answer 4

Question

Chapter 24, Problem 5SA

Summary Introduction

To answer:

The reason that scientists had problems identifying virulence factors of Treponema pallidum.

Introduction:

Treponema pallidum causes syphilis. This spirochete has helical cells that are so narrow that they are difficult to observe by a regular light microscope with Gram-staining. Therefore, scientists use either dark-field microscopy or phase contrast microscopy or special stains to increase contrast.

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Answer 5

Chapter 24, Problem 5SA

Summary Introduction

To answer:

The reason that scientists had problems identifying virulence factors of Treponema pallidum.

Introduction:

Treponema pallidum causes syphilis. This spirochete has helical cells that are so narrow that they are difficult to observe by a regular light microscope with Gram-staining. Therefore, scientists use either dark-field microscopy or phase contrast microscopy or special stains to increase contrast.

Answer 6

Chapter 24, Problem 5SA

Summary Introduction

To answer:

The reason that scientists had problems identifying virulence factors of Treponema pallidum.

Introduction:

Treponema pallidum causes syphilis. This spirochete has helical cells that are so narrow that they are difficult to observe by a regular light microscope with Gram-staining. Therefore, scientists use either dark-field microscopy or phase contrast microscopy or special stains to increase contrast.

Answer 7

Chapter 24, Problem 5SA

Summary Introduction

To answer:

The reason that scientists had problems identifying virulence factors of Treponema pallidum.

Introduction:

Treponema pallidum causes syphilis. This spirochete has helical cells that are so narrow that they are difficult to observe by a regular light microscope with Gram-staining. Therefore, scientists use either dark-field microscopy or phase contrast microscopy or special stains to increase contrast.

Answer 8

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Answer 11

Ch. 24 - Why are newborn girls less likely to contract...Ch. 24 - Why does insertion of a urinary catheter increase...Ch. 24 - Why does Candida albicans, which is a member of...Ch. 24 - Prob. 4TMW Ch. 24 - Prob. 1CCS Ch. 24 - Why is erythromycin substituted for tetracycline...Ch. 24 - Prob. 2CCS Ch. 24 - Prob. 6TMW Ch. 24 - Prob. 3CCS Ch. 24 - Prob. 4CCS

Solution Summary: The author explains that scientists had difficulty identifying virulence factors of Treponema pallidum because it cannot survive in outside environment and it is difficult to multiply it under lab conditions.

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