PID SPOTS

Question 1

What are the two mechanisms of diarrhoea in calfs and piglets?

Answer 1

Secretory & Malabsorpative

Question 2

How does an animal infected with BVDV acquire mucosal disease?

Answer 2

They will get this if the non cytopathogenic form develops into the cytopathogenic strain

Question 3

How is mucosal disease due to BVDV distinguished from FMD?

Answer 3

FMD would have vesicles on the oral mucosa and skin

Question 4

What will happen to the immune response to a vaccine if MDA levels are high at the time of vaccination?

Answer 4

The MDA will interfere with the vaccine antigens and an adaptive immune response will not be as effective leaving the animal still vulnerable to disease.