Vaccination Flashcards
All 5 cards in this deck
What does vaccination involve putting into the body?
Small quantities of dead or inactive forms of a pathogen.
What are the steps by which vaccination makes a person immune?
e.g. the measles vaccine- A small quantity of dead or inactive pathogen is introduced — e.g. inactive measles virus.
- This stimulates white blood cells to produce antibodies.
- If the same pathogen re-enters, the white blood cells respond quickly to produce the correct antibodies, preventing infection.
How does immunising a large proportion of the population reduce the spread of a pathogen?
Far fewer people can catch and pass on the pathogen, so it spreads much less.
What happens to antibody production when the same pathogen enters the body a second time?
Antibodies are produced much more quickly and in much greater quantity.
True or false? A vaccine contains live, active pathogens that give you a mild form of the disease.
False. It contains small quantities of dead or inactive forms of the pathogen.