type of immunity and vaccines

• what is a vaccine?

  it contains a dead or inactive pathogen being injected into the body in order to stimulate an immune response
• what does a vaccine induce the production of?

  memory cells, antibodies
• why are vaccines long lasting?

  because they produce memory cells which produce complimentary antibodies to the antigen
• ethical issues?

  all tested on animals first, some humans in clinical trials put themselves at risk, side effects, questions about who should get the vaccine first
• why dont vaccines fully eliminate disease?

  doesnt always indue immunity, financial issues, antigenic variability, different strains, moral/ religious/ ethical reasons
• what is herd immunity?

  a population is protected as enough people have the vaccine
• active immunity?

  making antibodies after being injected with an antigen
• natural active immunity?

  immune after catching the disease
• artificial active immunity?

  immune after being given a vaccination
• does active immunity have long or short term immunity?

  long
• passive immunity?

  body given antibodies made by a different organism
• natural passive immunity?

  baby given them through mothers placenta or milk
• artificial passive immunity?

  injected with antibodies
• does passive immunity have long or short term immunity?

  short term as no immune response triggered
• does passive immunity trigger a immune response?

  no