Vaccination Flashcards
vaccine strength is reliant on
how many antigens are in the vaccine
what is a conjugate vaccine
vaccine created by joining a polysaccharide antigen to a covalent protein
what vaccine is used for babies and children against bacteria with polysaccharide capsular
conjugate vaccine
unconjugated polysaccharides are the reason why
germinal center reactions can’t start, affinity maturation and proliferation of polysaccharide-specific B cells
polysaccharide conjugated carrier proteins cause
increase affinity maturation, proliferation and production of plasma cells and memory B cells
what is the function of adjuvants
help create a stronger immune response
Extrafollicular reaction:
Germinal center:
Memory B cells
- low levels of low-affinity antibodies in the serum after immunization
- b cells differentiate into plasma cells secreting high affinity antigen specific antibodies
- few plasma cells exit the nodes/spleen and travel to bone marrow
T cell response ( 3 stages)
First stage
second stage
third stage
- expansion phase, T cells expand into CD4 and CD8 cells
- inflammatory cytokines and kill cells are secreted
- Memory phase, # of T cells stabilize and cells are maintained