Chapter 8 Flashcards Preview

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Flashcards in Chapter 8 Deck (6):
1

Passive immunity

refers to the acquirement of antibodies from an external source (temporary resistance)

2

Active immunity

refers to production of antibodies by one's self

3

Natural immunity

refers to the production of antibodies by one's body without artificial intervention (acquiring pathogen and its antigens naturally)

4

Artificial immunity

refers to the introduction of pathogens and its antigens through vaccines or injections

5

Herd immunity

a high proportion of a population is immunised or has the specific antibodies against an infectious disease, thereby preventing the spread of infection from person to person (protects newborns, AIDS, chemotherapy, elderly)
When a low proportion is immunised, a chain of infection is easily established (rapid spread)

6

Autoimmune disease with reference to autoantibodies

Immune system does not recognise HLA markers (identified as non-self) and attacks their own body cells Autoantibodies- attacks own body's cells instead of pathogens