(T4.3, L7) Vaccines Flashcards
1
Q
What is a vaccine?
A
A dead or weakened part of a pathogen which doesn’t make us feel ill.
2
Q
Why have vaccinations been developed?
A
To protect us from future infections.
3
Q
What is a vaccination?
A
An injection of a dead or weakened version of a pathogen which carries antigens causing the white blood cells to produce antibodies to attack the pathogen.
4
Q
What will happen if you get infected with the same pathogen after having a vaccination?
A
The white blood cells have immunological memory so they produce antibodies quickly.
5
Q
What are the pros and cons of vaccinations? (4)
A
Pros: Help control common communicable diseases and prevent epidemics.
Cons: Don’t always work and some people may have bad reactions to the vaccine (rare).
