Vaccinations: Flashcards
How do vaccinations work?
= introducing antigen into blood stream
CONTAINS: dead or weak form of pathogen or antigen
= contain multiple types of antigen from particular pathogens
What happens when a vaccination is produced?
= memory cells produced
= secondary immune response
=
what is herd immunity?
= large population is vaccinated protect unvaccinated individuals
= with enough people vaccinated less people to pass on the disease
What is antigenic variability?
= pathogen high rate of mutation
= genes of pathogen change leads to different antigens
= antibodues previouslt have no effect
=
What are the ethics to vaccinations?
= animal testing
= side effects
= religious views
=
What is passive immunity?
= introduction of antibodues to an individual
= no memory cells formed
= immunity immediatley
= short term: antiody given is broken down
=
What is active immunity?
= indidual produces their own antibodies in response to antigens
= natural results for disease
= artifical from vaccine
= long term: antibodi produced due to respone of antigen
=Active (can) take time to develop /
What does the sucess of a vaccine depend on which factors?
= cost
= severity of side effects
= ease of population, transpiration and admiration
= number of people needed for herd immunity
What are the ethical considerations of a vaccination?
= production and testing done on animals
= risks of vaccine need to balance benefits
= vaccine must be tested on humans to text toxicidity
= vaccinations are expensive
= should the be compulsory?