Podcast
Questions and Answers
What is a characteristic feature of Cryptococcus neoformans?
What is a characteristic feature of Cryptococcus neoformans?
- Spindle-shaped yeast cells with thin walls
- Rod-shaped bacteria with a smooth surface
- Budding yeast cells with a refractile gelatinous capsule (correct)
- Oval yeast cells with no visible capsule
Which condition may lead to Balanitis and vaginitis due to lowered pH?
Which condition may lead to Balanitis and vaginitis due to lowered pH?
- Increased exercise
- Excessive hydration
- High protein diet
- Antibiotic therapy (correct)
What is a typical discharge associated with vaginal infections caused by yeast?
What is a typical discharge associated with vaginal infections caused by yeast?
- Brownish bloody discharge
- Clear and watery discharge
- Curdlike yellow-white liquid discharge (correct)
- Thick green pus-like discharge
Which microscopic feature helps identify Geotrichum candidum?
Which microscopic feature helps identify Geotrichum candidum?
What pH is typically maintained in a healthy vagina, partially due to Doderlein's bacilli?
What pH is typically maintained in a healthy vagina, partially due to Doderlein's bacilli?
What is the primary mode of transmission for Sporotrichosis?
What is the primary mode of transmission for Sporotrichosis?
Which type of lesions develop at the site of implantation in Fixed Cutaneous Sporotrichosis?
Which type of lesions develop at the site of implantation in Fixed Cutaneous Sporotrichosis?
What is a common characteristic of the lesions in Lymphocutaneous Sporotrichosis?
What is a common characteristic of the lesions in Lymphocutaneous Sporotrichosis?
Which of the following is NOT a type of infection mentioned?
Which of the following is NOT a type of infection mentioned?
What can happen if the lesions from Sporotrichosis become infected?
What can happen if the lesions from Sporotrichosis become infected?
Where are primary lesions most commonly found in Fixed Cutaneous Sporotrichosis?
Where are primary lesions most commonly found in Fixed Cutaneous Sporotrichosis?
Which fungus is responsible for causing Sporotrichosis?
Which fungus is responsible for causing Sporotrichosis?
Which of the following statements about subcutaneous fungi is true?
Which of the following statements about subcutaneous fungi is true?
Which organism is associated with the disease Chromoblastomycosis?
Which organism is associated with the disease Chromoblastomycosis?
What type of conidiation is characterized by a tree-like appearance with chains branching from a conidium?
What type of conidiation is characterized by a tree-like appearance with chains branching from a conidium?
Which of the following fungi is specifically identified as causing mycetoma with light-colored granules?
Which of the following fungi is specifically identified as causing mycetoma with light-colored granules?
Which organism has a 'vase base phialide' as part of its morphology?
Which organism has a 'vase base phialide' as part of its morphology?
What is the characteristic morphology of Exophiala jeanselmei?
What is the characteristic morphology of Exophiala jeanselmei?
Sporothrix schenckii is known for causing what type of infection?
Sporothrix schenckii is known for causing what type of infection?
Which of the following fungi may have a secondary infection associated with its disease manifestation?
Which of the following fungi may have a secondary infection associated with its disease manifestation?
Which type of conidia are arranged sympodially on short denticles and resemble a body builder?
Which type of conidia are arranged sympodially on short denticles and resemble a body builder?
What is a common feature of the hyphae of Phialophora verrucosa?
What is a common feature of the hyphae of Phialophora verrucosa?
Which of the following statements about Madura foot is true?
Which of the following statements about Madura foot is true?
What is one of the primary mechanisms by which certain viruses cause mRNA degradation?
What is one of the primary mechanisms by which certain viruses cause mRNA degradation?
What is a characteristic of the adenoviruses mentioned?
What is a characteristic of the adenoviruses mentioned?
Which of the following responses are not protective against Hepatitis?
Which of the following responses are not protective against Hepatitis?
What is the main way the adenovirus enters hepatocytes?
What is the main way the adenovirus enters hepatocytes?
What is a possible outcome of chronic hepatitis?
What is a possible outcome of chronic hepatitis?
Which type of immune response specifically targets virally-infected cells?
Which type of immune response specifically targets virally-infected cells?
What is a common symptom of hepatitis?
What is a common symptom of hepatitis?
Which type of virus is classified under the Herpes Viridae family?
Which type of virus is classified under the Herpes Viridae family?
How are adenoviruses primarily characterized in their structure?
How are adenoviruses primarily characterized in their structure?
What is a critical action in controlling virally spread infections like Hepatitis?
What is a critical action in controlling virally spread infections like Hepatitis?
What characteristic differentiates Phaeohyphomycosis from Hyalohyphomycosis?
What characteristic differentiates Phaeohyphomycosis from Hyalohyphomycosis?
What is a key identifying cellular feature of Pneumocystis carinii?
What is a key identifying cellular feature of Pneumocystis carinii?
Which of the following best describes Saccharomyces cerevisiae?
Which of the following best describes Saccharomyces cerevisiae?
What type of fungal infection is often associated with HIV-infected individuals?
What type of fungal infection is often associated with HIV-infected individuals?
What feature characterizes 'phialide' in fungi?
What feature characterizes 'phialide' in fungi?
Which term best describes the cells where conidia arise?
Which term best describes the cells where conidia arise?
What are chlamydospores known for?
What are chlamydospores known for?
Which organism is strictly haploid and primarily grows in yeast form?
Which organism is strictly haploid and primarily grows in yeast form?
Which of the following correctly describes annellides in fungal reproduction?
Which of the following correctly describes annellides in fungal reproduction?
What type of factors commonly increase the risk of Pneumocystis carinii infections?
What type of factors commonly increase the risk of Pneumocystis carinii infections?
Which types of viruses exhibit latency in nerve cells?
Which types of viruses exhibit latency in nerve cells?
What is a common cause of Pharyngeal-conjunctival Fever?
What is a common cause of Pharyngeal-conjunctival Fever?
What is one of the common infections in military recruits?
What is one of the common infections in military recruits?
Which type of immune response is predominantly involved in early infection control?
Which type of immune response is predominantly involved in early infection control?
What is the primary method for diagnosing these viral infections?
What is the primary method for diagnosing these viral infections?
Which viruses are known to cause latency in lymphocytes?
Which viruses are known to cause latency in lymphocytes?
What kind of cells are usually infected by neurotropic viruses?
What kind of cells are usually infected by neurotropic viruses?
What is a common characteristic of cold climate epidemiology concerning viral infections?
What is a common characteristic of cold climate epidemiology concerning viral infections?
Flashcards
Subcutaneous Fungi
Subcutaneous Fungi
Fungi that live in decaying vegetation and wood.
Sporotrichosis
Sporotrichosis
A fungal infection caused by Sporothrix schenckii.
Sporotrichosis Transmission
Sporotrichosis Transmission
Usually occurs from trauma-related injuries from contact with infected vegetation/wood.
Sporotrichosis Lesions
Sporotrichosis Lesions
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Fixed Cutaneous Sporotrichosis
Fixed Cutaneous Sporotrichosis
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Lymphocutaneous Sporotrichosis
Lymphocutaneous Sporotrichosis
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Phaeohyphomycosis
Phaeohyphomycosis
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Mycetoma
Mycetoma
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Blastoconidia
Blastoconidia
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Pseudohyphae
Pseudohyphae
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Chlamydospores
Chlamydospores
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Pneumocystis carinii
Pneumocystis carinii
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Phialide
Phialide
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Annellides
Annellides
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Opportunistic Fungi
Opportunistic Fungi
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Saccharomyces cerevisiae
Saccharomyces cerevisiae
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Candida albicans microscopic appearance
Candida albicans microscopic appearance
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Geotrichum candidum microscopic appearance
Geotrichum candidum microscopic appearance
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Candida Infections (Balanitis, Vaginitis)
Candida Infections (Balanitis, Vaginitis)
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Geotrichum candidum isolation sources
Geotrichum candidum isolation sources
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Geotrichosis
Geotrichosis
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Chromoblastomycosis
Chromoblastomycosis
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Cladosporium carionii
Cladosporium carionii
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Phialophora verrucosa
Phialophora verrucosa
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Fonsecaea pedrosoi
Fonsecaea pedrosoi
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Conidia
Conidia
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Phialophora
Phialophora
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Pseudallescheria boydii
Pseudallescheria boydii
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Sporothrix schenckii
Sporothrix schenckii
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Acute Febrile Pharyngitis
Acute Febrile Pharyngitis
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Pharyngeal-conjunctival Fever
Pharyngeal-conjunctival Fever
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Acute Respiratory Disease
Acute Respiratory Disease
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Neurotropic Viruses
Neurotropic Viruses
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Lymphotropic Viruses
Lymphotropic Viruses
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Host Defenses Against Viral Infections
Host Defenses Against Viral Infections
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Intranuclear Inclusions
Intranuclear Inclusions
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Multinucleated Giant Cells
Multinucleated Giant Cells
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Adenovirus Structure
Adenovirus Structure
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Adenovirus Properties
Adenovirus Properties
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Adenovirus Infection Sites
Adenovirus Infection Sites
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Adenovirus Pathogenesis
Adenovirus Pathogenesis
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Hepatitis
Hepatitis
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Hepatitis B Virus Entry
Hepatitis B Virus Entry
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HBcAg and HBeAg
HBcAg and HBeAg
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Herpes Viridae
Herpes Viridae
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Antiviral Antibody Defense
Antiviral Antibody Defense
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Host Defenses Against Viruses
Host Defenses Against Viruses
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Study Notes
Subcutaneous Fungi
- Most are saprobes found in decaying vegetation and wood
- Transmission is often via trauma
- Can form nodules that ulcerate
- Secondary bacterial infections are possible
Kinds of Infection
- Phaeohyphomycosis: Caused by fungi such as Exophiala, Phialophora, and Wangiella. Characterized by various symptoms
- Mycetoma: Chronic granulomatous infection of the skin, subcutaneous tissue, and sometimes bone. Sinuses discharge organisms. Also known as "Madura foot" or "watering can foot"
- Sporotrichosis: Caused by Sporothrix schenckii. Characterized by nodular lesions that suppurate, ulcerate, and drain. Often affects the upper and lower limbs
- Chromoblastomycosis: Verrucoid crusted nodules of the skin. Painless if without secondary infection
- The infection is often spread along lymphatic channels
Types of Sporotrichosis
- Fixed cutaneous: Primary lesions develop at the site of implantation. Common locations are limbs, hands, and fingers
- Lymphocutaneous: Primary and secondary lesions develop at the site of implantation and along lymphatic channels. No systemic symptoms
- Pulmonary: Hematogenous dissemination, common symptoms are cough, sputum production, fever and weight loss
- Osteoarticular: Lesions typically confined to long bones near affected joints, resulting in joint stiffness and pain.
Mycetoma
- Chronic granulomatous or actinomycotic infection of the skin, subcutaneous tissue, and occasionally bone.
- Sinuses discharge different types of fungi and bacteria
- Commonly called"Madura foot" or "watering can foot"
Chromoblastomycosis
- Verrucoid crusted nodules of the skin develop
- Often painless if without secondary infections
- Dematiaceous (dark pigmented/copper coloured) fungi develop in the tissue
- Trauma can introduce the fungal elements in the skin
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