Immunity and vaccination Flashcards
What is a vaccination?
The administration of antigenic material to produce immunity to a disease
What is immunity?
The active ability of an organism to resist disease
What is innate immunity?
Body’s built in ability to recognise and destroy pathogens or their products
What is adaptive immunity?
Acquired ability to recognise and destroy pathogens and their products
Is innate immunity specific or non-specific?
Non-specific
Is adaptive immunity specific or non-specific?
Specific
In active immunity, immunity is achieved by no exposure to antigen, but by injecting antibodies or antigen-reacting T cells. True or false?
False - this is passive immunity
Passive immunity is long-term. True or false?
False - it cannot be maintained and rapidly decays
Active immunity is acquired by exposure to the antigen. Immunity is achieved by injecting antigen or through infection. True or false?
True
How is active immunity maintained?
By stimulation of memory cells (i.e. booster immunisation)
Immunity develops immediately in active or passive immunity?
Passive
What are antigens?
Foreign substances which induce an immune response in the body
Vaccines use adaptive immune response. True or false?
True
What is a modified toxin called?
A toxoid
What are the different types of vaccines?
Toxoid Attenuated Conjugated Killed bacteria Inactive virus