Fetal/Neonatal Immunity

Question 1

What is the first organ to develop in a neonate?

Answer 1

thymus

Question 2

What will occur if an animal is born without a thymus?

Answer 2

they will be immune deficient

Question 3

Does a new born have a functional adaptive immune system?

Answer 3

NO

Question 4

Cytopathic

Answer 4

strains induce IFN production and cannot cause persistent infection

Question 5

Noncytopathic

Answer 5

strains do not trigger type 1 IFN production and can survive in calves and cause persistent infections

Question 6

Maternal exposure to noncytopathic BVD can cause:

Answer 6

tolerance and persistent infection or normal

Question 7

maternal exposure to cytopathic BVD can cause:

Answer 7

abortion, resorption or mummification
malformation
normal

Question 8

Colostrum contains 65-90% which antibody in horses, cows, sheep, sow and queens

Answer 8

IgG

Question 9

Colostrum is predominately which antibody in the bitch?

Answer 9

IgA

Question 10

How long does a baby have to drink colostrum before Ig levels drop?

Answer 10

24 hours

Question 11

When can you administer vaccines to a neonate?

Answer 11

after maternal antibodies stop being absorbed

Question 12

Ingesting colostorum protects young animals against

Answer 12

septicemic disease

Question 13

Ingesting milk for a long period of time ensure

Answer 13

GI protection against enteric infection

Question 14

Reasons for failure of passive transfer

Answer 14

Production failure
ingestion failure
absorption failure