Podcast
Questions and Answers
Which bacterial species is responsible for Malignant Edema?
Which bacterial species is responsible for Malignant Edema?
- Eimeria bovis
- Haemophilus somnus
- Clostridium septicum (correct)
- Histophilus somni
Which type of hypersensitivity reaction is characterized by degranulation of mast cells and basophils?
Which type of hypersensitivity reaction is characterized by degranulation of mast cells and basophils?
- Type III hypersensitivity
- Type II hypersensitivity
- Type IV hypersensitivity
- Type I hypersensitivity (correct)
What is the characteristic feature of Haemophilus somnus infections?
What is the characteristic feature of Haemophilus somnus infections?
- Toxemia caused by beta toxin
- Infection of the cecum and colon
- Tropism for brain (cerebellum and brain stem) (correct)
- Infection of the small and large intestine
Which parasitic disease has a two-host cycle, involving a predator and prey?
Which parasitic disease has a two-host cycle, involving a predator and prey?
What is the shape of the virus that causes Bovine Ephemeral Fever?
What is the shape of the virus that causes Bovine Ephemeral Fever?
Flashcards
Clostridium septicum
Clostridium septicum
Bacterial species causing Malignant Edema.
Type I hypersensitivity
Type I hypersensitivity
Hypersensitivity reaction involving mast cell degranulation.
Haemophilus somnus
Haemophilus somnus
Bacteria with a tropism for cerebellum and brain stem.
Sarcocystosis
Sarcocystosis
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Bovine Ephemeral Fever virus
Bovine Ephemeral Fever virus
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Study Notes
Malignant Edema
- Acute and generally fatal toxemia caused by beta toxin, an endotoxin derived from Gram-negative bacterial cell walls
- Affects hosts such as cattle, horses, sheep, goats, pigs, and humans
- Caused by Clostridium septicum, also known as Hemorrhagic Enteritis
Anaphylaxis
- Immediate (Type I) hypersensitivity reaction to antigens to which the body was previously sensitized
- Characterized by degranulation of mast cells and basophils
Haemophilus Complex
- Caused by Haemophilus somnus and Histophilus somni, a Gram-negative pleomorphic rod or coccobacillus
- Results in septicemic disease and thromboembolic meningoencephalitis (TEME)
- Shows tropism for the brain, particularly the cerebellum and brain stem
Sarcocystosis
- Also known as Sarcosporidiosis
- Caused by Sarcocystis, a coccidial protozoan with a 2-host cycle (predator-prey)
- Examples include S. cruzi (dog-cattle) and S. hirsuta (cat-cattle)
Coccidiosis
- Caused by Eimeria bovis, which infects the cecum and colon
- Caused by Eimeria zuernii, which infects the small and large intestine
Bovine Ephemeral Fever
- Caused by a bullet-shaped virus transmitted by arthropods
- Also known as Three-day Sickness
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