Michaelmas Flashcards
What are the various causes of bronchopneumonia in a lamb?
Multifactorial - bacteria, viral, stress etc.
Which species causes parasitic bronchpneumonia in carnivores and insectivores?
Crenosoma spp
What are clinical signs of Crenosoma in the hedgehog?
Chronic respiratory infection (coughing,
sneezing, nasal discharge, tachypnoea)
What is the lifestyle of Crenosoma?
Ovo-viviparous, L1 in faeces
How can you diagnose Crenosoma?
examination of faeces, smear, flotation or Baerman
technique (L1)
Factors causing primary ruminal tympany?
hereditary predisposition, new diet, grain concentrates,
certain legumes, such as alfalfa and ladino clover
Cause of death in bloat?
compression of the diaphragm, decreased pleural
cavity size, respiratory distress, increased abdominal and thoracic pressures, decreased venous return to the heart, and generalised congestion
What % of feline deaths are associated with FIP?
12%
Where do cats catch FIP from?
saliva on shared bowls and utensils, feces, mutation of endogenous
coronavirus
In which cells does FIP initially replicate?
Epithelial cells of the intestine, and lymph nodes
Which cells are infected before viraemia in FIP?
Macrophages
Which cells are activated giving systemic vasculitis in FIP?
Endothelial cells, secondary the MHC upregulation
Which conditions follow systemic vasculitis in FIP?
Peritonitis, serositis, granulomatous nephritis, pleuritis, meningitis, uveitis etc
Clinical signs of FIP?
progressive loss weight,
abdomen distention, behavioral changes
Clinical signs of Johne’s disease?
Chronic diarrhoea, emaciation, and hypoproteinaemia
PM findings in Johne’s disease?
Proliferative enteropathy (histiocytic), lymphangiectasia, lymphadenopathy, ulceration, thickened ileocaceal valve, thickened ileum, caecum and proximal colon
Which stain for Johne’s?
Ziehl-Neelson
How old are affected animals in Johne’s?
1.5-2
Which species get chronic diarrhoea in Johne’s?
Cattle, some pygmy goats
Which species get wasting disease in Johne’s?
Goats and sheep
How do you catch Johne’s disease?
From faeces
How does Johne’s get to mesenteric lymph nodes?
GI tract, macrophages, intestine and mesenteric lymph nodes
What do you see on histo in Johne’s disease?
Granulomatous enteritis - foamy macrophages, large numbers of acid-fast bacilli, MGNs
Why is there speculation that Johne’s is zoonotic?
Crohn’s disease in humans