Textbook Question
Dimorphic fungi exist as _____ forms in the environment and as _____ forms in their hosts.
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Ch. 22 - Pathogenic Fungi
Bauman6th EditionMicrobiology with Diseases by TaxonomyISBN: 9780134832302
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Table of contents
- Ch. 1 - A Brief History of Microbiology31
- Ch. 2 - The Chemistry of Microbiology28
- Ch. 3 - Cell Structure and Function39
- Ch. 4 - Microscopy, Staining, and Classification25
- Ch. 5 - Microbial Metabolism51
- Ch. 6 - Microbial Nutrition and Growth37
- Ch. 7 - Microbial Genetics51
- Ch. 8 - Recombinant DNA Technology21
- Ch. 9 - Controlling Microbial Growth in the Environment36
- Ch. 10 - Controlling Microbial Growth in the Body: Antimicrobial Drugs21
- Ch. 11 - Characterizing and Classifying Prokaryotes29
- Ch. 12 - Characterizing and Classifying Eukaryotes34
- Ch. 13 - Characterizing and Classifying Viruses, Viroids, and Prions23
- Ch. 14 - Infection, Infectious Diseases, and Epidemiology35
- Ch. 15 - Innate Immunity34
- Ch. 16 - Adaptive Immunity21
- Ch. 17 - Immunization and Immune Testing29
- Ch. 18 - Immune Disorders22
- Ch. 19 - Pathogenic Gram-Positive Bacteria25
- Ch. 20 - Pathogenic Gram-Negative Cocci and Bacilli28
- Ch. 21 - Rickettsias, Chlamydias, Spirochetes, and Vibrios25
- Ch. 22 - Pathogenic Fungi47
- Ch. 23 - Parasitic Protozoa, Helminths, and Arthropod Vectors44
- Ch. 24 - Pathogenic DNA Viruses23
- Ch. 25 - Pathogenic RNA Viruses30
- Ch. 26 - Applied and Industrial Microbiology29
- Ch. 27 - Microbial Ecology and Microbiomes22
Bauman6th EditionMicrobiology with Diseases by TaxonomyISBN: 9780134832302Not the one you use?Change textbook
Chapter 22, Problem 1
Match each of the following diseases with the manner(s) in which fungi enter the body. Answers can be used more than once.
1. ___ Aspergillosis
2. ___Candidiasis
3. ___Chromoblastomycosis
4. ___ Coccidioidomycosis
5. ___ Cryptococcosis
6. ___Dermatophytosis
7. ___ Histoplasmosis
8. ___ Hypersensitivity reactions
9. ___ Mushroom poisoning
10. ___ Mycetoma
11. ___ Sporotrichosis
A. Inhalation
B. Contact
C. Trauma
D. Ingestion
Verified step by step guidance1
Step 1: Understand the four modes of fungal entry into the body: Inhalation (A), Contact (B), Trauma (C), and Ingestion (D). Each disease is associated with one or more of these modes based on how the fungus typically infects humans.
Step 2: For diseases like Aspergillosis, Coccidioidomycosis, Cryptococcosis, and Histoplasmosis, recognize that these fungi primarily enter the body through inhalation of spores from the environment. So, match these diseases with option A.
Step 3: For diseases such as Candidiasis and Dermatophytosis, which often involve skin or mucous membranes, consider contact transmission as the main route. Match these with option B.
Step 4: Diseases like Chromoblastomycosis, Mycetoma, and Sporotrichosis typically result from fungi entering through breaks in the skin caused by trauma. Therefore, match these with option C.
Step 5: For Mushroom poisoning, the route of entry is ingestion of toxic mushrooms, so match this disease with option D. Hypersensitivity reactions are immune responses to fungal antigens, often related to inhalation, so match with option A.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Modes of Fungal Entry
Fungi can enter the human body through various routes including inhalation of spores, direct contact with skin or mucous membranes, traumatic implantation via wounds, and ingestion of contaminated substances. Understanding these entry modes is essential to link specific fungal diseases to their typical infection pathways.
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Entry & Uncoating by Endocytosis
Pathogenesis of Fungal Diseases
Each fungal disease has a characteristic pathogenesis influenced by the mode of entry and the fungal species involved. For example, inhaled spores often cause systemic or pulmonary infections, while trauma-related entry leads to localized cutaneous or subcutaneous infections. Recognizing these patterns helps in matching diseases to their entry routes.
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Clinical Manifestations and Disease Classification
Fungal diseases vary widely in clinical presentation, from superficial infections like dermatophytosis to systemic illnesses like histoplasmosis. Some conditions, such as hypersensitivity reactions or mushroom poisoning, involve immune responses or toxin ingestion rather than direct fungal invasion. Differentiating these helps in correctly associating diseases with their modes of entry.
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Related Practice
Textbook Question
Indicate whether each statement is true or false. If the statement is false, change the underlined word or phrase to make the statement true.
_____ Fungi are generally not transmitted from person to person.
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Textbook Question
Amphotericin B is considered the “gold standard” of antifungal agents. Technically, its mode of action works against most fungal infections. Why, then, isn’t it prescribed for most fungal infections?
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