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29 Cards in this Set
- Front
- Back
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What are the general characteristics of spirochetes?
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Helical form; gram negative
endoflagella-motile commensal or saprobe of animals not primarily pathogens |
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What are some characteristics of the Leptospria species?
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tightly coiled spiral rods, no flagella
a hook at one or both ends corkscrew type of motility obligate aerobe smallest of the spriochetes |
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Leptospirosis is ___________
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zoonotic!
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How long does lepto live in soil or water?
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several months
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how can lepto be transmitted?
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contact via skin abrasion or mucous membrane
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What does Leptospira pomona and L. hardjo cause?
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localized renal injection
fever anorexia dyspnea hemoglobinuria abortion |
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What does L. canicola cause in dogs?
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fever
depression anorexia jaundice frequent urination nephritis |
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How is L. canicola contracted?
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by drinking raw milk,
contact with infected animals, swimming in contaminated water |
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What are characteristics of borrelia?
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periplasmic flagella
microaerophilic gram negative |
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How is borrelia transmitted?
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ticks and lice bites or through their droppings
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What are characteristics of the Vibrio species?
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comma-shaped rods
unipolar flagellum fermantative and posess O antigens H antigens membrane receptors antigens |
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What does Vibrio cholerae do to the animal?
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Damages intestinal mucosa and causes secretory diarrhea
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What does Vibrio parahaemolyticus cause?
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causes gastroenteritis(from ingestion of contaminated food)
Watery diarrhea/ vomiting/ abdominal pain |
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What are the general characteristics of Richettsia species?
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GN nonflagellated pleomorphic rods/ coccobacilli
Intracellular/facultative extracellular Spread by arthropods (vector |
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What are the three phases of Canine ehrlichiosis?
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Acute phase
Subclinical phase Chronic phase |
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What causes Ehrlichiosis?
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Ehrlichia canis
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What is the Acute phase of Ehrlichiosis?
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8-20 incubation period
characterized by fever; anorexia; depression; lymphadenopathy; oculonasal discharge; dyspnea; hematologic changes |
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What is the subclinical phase of Ehrlichiosis?
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The animal appears clinically normal
Immunocompetent dogs eliminate E. canis |
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What is the Chronic phase?
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Characterized by hemorrhage
epistaxis emaciation |
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What are the general characteristics of Chlamydia?
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Obligate intracellular parasites
GN, pleomorphic rods/ coccobacilli unique life cycle in 2 forms Elementary body Reticulate body |
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What is an elementary body?
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Small, infectious
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What is a reticulate body?
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Large, non-infectious, dividing form
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How is C. psittaci transmitted?
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contaminated feces and other discharges
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In humans what are the symptoms for C. psittaci?
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Symptoms are similar to influenza, pneumonia
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In birds what are the symptoms of C. psittaci?
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nasal discharge
depression |
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In ewes what is the symptoms of C. psittaci?
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abortion
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In cows what are the symptoms of C. psittaci?
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Polyarthritis
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In calves what are the symptoms of C. psittaci?
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diarrhea
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In cats what are the symptoms of C. psittaci?
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conjunctivitis
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