Scrapie, Biology

Assignment Help:

Scrapie

This is a chronic fatal disease of sheep and occasionally of goats caused by a Prion agent similar to BSE. The disease is reported from Europe, North America and in a few countries of Africa and Asia.

Clinical signs: Incubation period is of 2-5 years. Affected sheep show excitement, signs of muscular tremors of head and neck, wavering gait, vacant look and paraplegia. Sheep develop pruritus with wool loss and skin rubbed raw. They loose weight and ultimately die.

Diagnosis: The disease is diagnosed by the clinical signs, direct electron microscopy of brain material or demonstration of Prion protein by Western blot. The agent can be transmitted to mice and hamster and these species are being used as laboratory models for characterizing the agent.


Prevention and control:
The disease is controlled by systematic detection of infected  and in-contact animals and their disposal by slaughter and consequently building disease free "certified flocks".


Related Discussions:- Scrapie

Conducting system of the heart, The fibrous rings of the four valves of the...

The fibrous rings of the four valves of the heart are continuous with each other. They not only form the basis for the attachment of the corresponding valve cusps but also form an

Aipmt exam, Which book is best for quallifying in aipmt exam and what shoul...

Which book is best for quallifying in aipmt exam and what should be my minimum studying hours???

Difference between the reptile heart and the amphibian heart, Q. What is th...

Q. What is the difference between the reptile heart and the amphibian heart? The reptiles have incomplete and double circulation three heart chambers two atria and one ventricl

Explain the population growth of ecology, Explain the Population Growth? ...

Explain the Population Growth? A population can grow, it can remain stable, or it can decrease in size. Measuring the size of a population over time is used to help determine t

What is the function of the testicles, Q. Concerning reproduction what is t...

Q. Concerning reproduction what is the function of the testicles? The testicles are the male gonad that is the organs where the production of gametes takes place. In human bein

Economically important fermentation products-rice beer, Normal 0 ...

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

Kidney function test, Kidney impairment is one of the long term complicatio...

Kidney impairment is one of the long term complications of diabetes mellitus. Measurement and monitoring of kidney function parameters such as urea and creatinine, in addition to u

Determine the gymnosperm abundance noteworthy, In which areas of the globe ...

In which areas of the globe is gymnosperm abundance noteworthy? These plants are the typical vegetation of cold regions as the taiga, or boreal forest, of the northern hemisph

GENETICS.., DO I GET MY ANSWERS RIGHT AWAY?

DO I GET MY ANSWERS RIGHT AWAY?

Can you explain aneurysm of aorta, Q. Can you explain Aneurysm of Aorta? ...

Q. Can you explain Aneurysm of Aorta? CXR findings are an enlargement of the involved portion of the aorta. A focal dilatation may simulate a mass or adenopathy. A more general

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd