Identification and Clinical Importance of Fungal Pathogens

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Questions and Answers

Which yeast is the causative agent of candidiasis?

Candida albicans

In which sites are pathogenic Candida usually found in humans?

Mouth and vagina

What is the distinctive feature of Candida albicans' morphology?

Formation of true hyphae

How is Candida albicans identified in the laboratory?

Formation of germ tubes Signup and view all the answers

What usually precedes invasive candidiasis?

Increased colonization of the mouth and vagina Signup and view all the answers

How do non-albican Candida species enter the blood in majority of cases?

Through intravascular catheterization Signup and view all the answers

What is the diagnostic feature used to identify Candida albicans?

Formation of large thick walled spores on nutritionally deficient media Signup and view all the answers

Which of the following is a distinctive feature of Candida albicans' morphology?

Formation of true hyphae Signup and view all the answers

What is the distinctive feature used to identify Candida albicans?

Ability to form large thick walled spores called chlamydospores Signup and view all the answers

What usually precedes invasive candidiasis?

Increased colonization of the mouth and vagina due to broad spectrum antibiotics Signup and view all the answers

How is Candida albicans identified in the laboratory?

Ability to form large thick walled spores called chlamydospores Signup and view all the answers

What is the causative agent of candidiasis?

Candida albicans Signup and view all the answers

Where are pathogenic Candida usually found in humans?

Mouth and vagina Signup and view all the answers

What is the primary characteristic that distinguishes Candida albicans from other species?

Formation of germ tubes Signup and view all the answers

What is the distinguishing feature of Candida albicans' morphology?

Ability to form large thick-walled spores called chlamydospores Signup and view all the answers

How is Candida albicans identified in the laboratory?

By forming germ tubes (Reynolds Braude phenomenon) Signup and view all the answers

What usually precedes invasive candidiasis?

Increased colonization of the mouth and vagina due to broad-spectrum antibiotics Signup and view all the answers

Which yeast is the causative agent of candidiasis?

Candida albicans Signup and view all the answers

Where are pathogenic Candida usually found in humans?

Mouth and vagina Signup and view all the answers

What is the distinctive characteristic that distinguishes Candida albicans from other species?

Dimorphic nature with true hyphae formation Signup and view all the answers

How do non-albican Candida species enter the blood in the majority of cases?

Through intravascular catheterization Signup and view all the answers

(What are the majority of non-albican vagina species likely to enter the blood through?)

Signup and view all the answers

What is the distinguishing feature of Candida albicans' morphology?

Production of chlamydosphores on nutritionally deficient media Signup and view all the answers

What usually precedes invasive candidiasis?

Increased colonization of the mouth and vagina due to broad-spectrum antibiotics Signup and view all the answers

Where are pathogenic Candida usually found in humans?

In the mouth and vagina Signup and view all the answers

What is the causative agent of candidiasis?

Candida albicans Signup and view all the answers

Which yeast is the causative agent of candidiasis?

Candida albicans Signup and view all the answers

How is Candida albicans identified in the laboratory?

Production of chlamydosphores on nutritionally deficient media Signup and view all the answers

Which characteristic distinguishes Candida albicans from other species?

Formation of large, thick-walled spores called chlamydospores Signup and view all the answers

What distinguishes the majority of non-albican vagina species from Candida albicans?

Formation of true hyphae Signup and view all the answers

How is Candida albicans identified in the laboratory?

Formation of large, thick-walled spores called chlamydospores Signup and view all the answers

What usually precedes invasive candidiasis?

Increased colonization of the mouth and vagina due to broad spectrum antibiotics Signup and view all the answers

What are the majority of non-albican vagina species likely to enter the blood through?

Intravascular catheterization Signup and view all the answers

What is a distinguishing feature of Candida albicans' morphology?

Formation of true hyphae Signup and view all the answers

What is the primary characteristic used for accurate identification of Candida species other than C. albicans?

(Reynolds Braude phenomenon) Formation of germ tubes Signup and view all the answers

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Study Notes

Candidiasis

Candida albicans is the causative agent of candidiasis.
Pathogenic Candida is usually found in humans in the following sites: skin, mucous membranes, and gastrointestinal tract.

Morphology of Candida albicans

The distinctive feature of Candida albicans' morphology is the formation of germ tubes and chlamydospores.
Germ tubes are long, branching tubes that form when Candida albicans is incubated in serum.
Chlamydospores are large, thick-walled spores that are formed at the end of the germ tubes.

Laboratory Identification

Candida albicans is identified in the laboratory by its ability to form germ tubes and chlamydospores.
The germ tube test is a rapid and accurate method for identifying Candida albicans.

Pathogenesis

Invasive candidiasis is usually preceded by colonization of the skin or mucous membranes.
Non-albican Candida species enter the blood in the majority of cases through central venous catheters or other medical devices.
Candida albicans can also enter the blood through the gastrointestinal tract.

Characteristics of Candida albicans

The primary characteristic that distinguishes Candida albicans from other species is its ability to form germ tubes and chlamydospores.
This characteristic is used for accurate identification of Candida albicans in the laboratory.

Identification and Clinical Importance of Fungal Pathogens

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Questions and Answers

Which yeast is the causative agent of candidiasis?

In which sites are pathogenic Candida usually found in humans?

What is the distinctive feature of Candida albicans' morphology?

How is Candida albicans identified in the laboratory?

What usually precedes invasive candidiasis?

How do non-albican Candida species enter the blood in majority of cases?

What is the diagnostic feature used to identify Candida albicans?

Which of the following is a distinctive feature of Candida albicans' morphology?

What is the distinctive feature used to identify Candida albicans?

What usually precedes invasive candidiasis?

How is Candida albicans identified in the laboratory?

What is the causative agent of candidiasis?

Where are pathogenic Candida usually found in humans?

What is the primary characteristic that distinguishes Candida albicans from other species?

What is the distinguishing feature of Candida albicans' morphology?

How is Candida albicans identified in the laboratory?

What usually precedes invasive candidiasis?

Which yeast is the causative agent of candidiasis?

Where are pathogenic Candida usually found in humans?

What is the distinctive characteristic that distinguishes Candida albicans from other species?

How do non-albican Candida species enter the blood in the majority of cases?

(What are the majority of non-albican vagina species likely to enter the blood through?)

What is the distinguishing feature of Candida albicans' morphology?

What usually precedes invasive candidiasis?

Where are pathogenic Candida usually found in humans?

What is the causative agent of candidiasis?

Which yeast is the causative agent of candidiasis?

How is Candida albicans identified in the laboratory?

Which characteristic distinguishes Candida albicans from other species?

What distinguishes the majority of non-albican vagina species from Candida albicans?

How is Candida albicans identified in the laboratory?

What usually precedes invasive candidiasis?

What are the majority of non-albican vagina species likely to enter the blood through?

What is a distinguishing feature of Candida albicans' morphology?

What is the primary characteristic used for accurate identification of Candida species other than C. albicans?

Studying That Suits You

Study Notes

Candidiasis

Morphology of Candida albicans

Laboratory Identification

Pathogenesis

Characteristics of Candida albicans

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