Author, Donkey, Bureaucrats, Administrators
53,803
edits
Changes
Jump to navigation
Jump to search
Transmissible Gastroenteritis Virus (view source)
Revision as of 13:44, 21 May 2010
, 13:44, 21 May 2010no edit summary
*Exposure of flock will serve to immunise
*Exposure of flock will serve to immunise
*No effective vaccines exist
*No effective vaccines exist
* Caused by a [[Coronaviridae|coronavirus]].
* Known as Epidemic diarrhoea or TGE.
* Produces an explosive diarrhoeic disease, which spreads through the farm rapidly.
* Epidemiologically, the disease is easy to recognise, since all ages of pigs scour.
** This is the means of diagnosis.
* Consequences of disease differ with the age of the animal.
** In very young animals, mortality may be up to 100%.
** In animals 1-3 weeks old, mortality is around 50%.
** Over 3 weeks of aged, mortality is 25%.
** Older pigs tend to recover from the disease.
=====Pathology=====
* Villi are shortened and more rounded, with a degree of fusion.
* Epithelial cells over the villi are flattened.
* The lamnia propria is congested and oedemetous.
* These changes are in contrast to coliform infections, which show much more normal villi.
** Many gram-negative bacteria can be seen adhering to the villi wall if a gram stain is used.
[[Category:Coronaviridae]][[Category:Pig]]
[[Category:Coronaviridae]][[Category:Pig]]