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Questions and Answers
Which of the following is the most common initial exposure route to Candida albicans for humans?
Which of the following is the most common initial exposure route to Candida albicans for humans?
- Consumption of contaminated food or water sources.
- Inhalation of fungal spores in a hospital environment.
- Exposure during passage through the vaginal canal during birth. (correct)
- Direct contact with contaminated surfaces in public restrooms.
What is the most significant factor that typically allows fungi to cause disease in humans?
What is the most significant factor that typically allows fungi to cause disease in humans?
- The accidental penetration of protective barriers like skin or mucous membranes. (correct)
- The ability of fungi to produce potent toxins that suppress the immune system.
- The genetic predisposition of certain individuals to fungal infections.
- The presence of specific nutrient-rich environments within the host's body.
What is the primary mechanism by which fungi, such as those causing aspergillosis, typically gain access to host tissues?
What is the primary mechanism by which fungi, such as those causing aspergillosis, typically gain access to host tissues?
- Direct injection through contaminated medical equipment.
- Migration through the bloodstream from a distant site of infection.
- Traumatic implantation or inhalation of fungal spores. (correct)
- Enzymatic degradation of the intestinal lining, leading to systemic spread.
Where is Malassezia furfur commonly found on the human body?
Where is Malassezia furfur commonly found on the human body?
What condition must be present for fungi to cause disease in most humans?
What condition must be present for fungi to cause disease in most humans?
Flashcards
C. albicans exposure
C. albicans exposure
Yeast encountered by humans at birth during vaginal delivery.
Malassezia furfur
Malassezia furfur
A fungus found in sebaceous gland-rich skin areas.
Fungal disease rarity
Fungal disease rarity
Fungi rarely cause disease in healthy individuals due to immune competence.
Fungal entry methods
Fungal entry methods
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Barrier penetration
Barrier penetration
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Study Notes
Fungal Infection Entry Mechanisms
- Fungi enter the body through various portals.
- A common initial exposure for humans is the yeast Candida albicans during birth, encountered in the vaginal canal.
- Malassezia furfur is prevalent in skin areas with high sebaceous gland density.
- Fungi usually do not cause disease in healthy immune systems despite frequent exposure to fungal propagules.
- Entry requires breaching physical barriers like intact skin and mucous membranes.
- Fungi can enter through traumatic implantation or inhalation.
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