Vaccination and Colostrum Flashcards
1
Q
what is a vaccination
A
Application of antigen that triggers a specific immune response, but no disease symptoms
2
Q
active immunization
A
- In passive immunization the body is not producing anything itself, it receives the antibodies (colostrum)
3
Q
colostrum
A
- Passive immunization
- Quantity, quality, and quickly
- 24-48 hours IgG uptake
- Temperature: reticular/esophageal groove reflex in calves and lambs
4
Q
vaccine types
A
- live vaccines
- dead, inactivated vaccines
- recombinant vaccines
- DIVA
5
Q
live vaccines
A
- live attenuated
- modified live virus
6
Q
dead, inactivated vaccines
A
o Whole pathogen or toxoid
o Subunit or protein
o (Often use an adjuvant to improve the effect on the immune system)
7
Q
recombinant vaccines
A
o Genetically engineered
o Just DNA/RNA
8
Q
DIVA
A
Vaccines for differentiating infected from vaccinated animals
9
Q
why vaccinate an individual animal
A
- Protect it against infection
- Protect it against disease symptoms
- Provide maternal immunity
- Protect fetus against infection
10
Q
why vaccinate a group of animals
A
- Same reasons as individual animal
- Reduce the excretion of the infection
- Control or eliminate the infection in the group/herd
