Immunizations Flashcards
What is a live attenuated vaccine? Examples?
live microbes that are weakened by growing them for many generations in animals or tissue cultures
examples: oral polio, MMR, zoster
What is an inactivated vaccine? Examples?
where the whole organism has been killed - stimualtes the immune system but does not cause disease
examples - polio, influenza, hep A
What is an inactivated toxin vaccine?
Some bacteria use toxins to cause disease, so these are just inactivated toxin - no bacteria
examples: tetanus, diptheria
What is a subunit vaccine?
A vaccine that only uses a part of the bacterium or virus.
Examples - tyhpoid, hep B
What is a conjugate vaccine? Examples?
A vaccine that links proteins form a second organism to the outer coat of a bacteria - it allows a baby’s immune system to recognize the bacteria
ex - HIB
What is an edible vaccine?
Genetically engineered potatoes, bananas and tomatoes that when eaten will initiate an immune response against hamrgul intestinal bacterial and viruses
ex - e. coli enterotoxin and rabies
What is an example of a plantibody (antibody made in a plant)?
vaccine against strep mutans (which causes cavities)
What are the valid reasons NOT to give a vaccine?
- anaphylactic reactions
- prior high fever
- immunodeficiency
- pregnancy
- significant acute illness
What is the effectiveness of the influenza vaccine in nursing home residents?
50-60% effective in preventing pneumonia and hospitalizations
60-70% effective in preventing death
NOT effective in reducing outpatient care visits for respiratory problem
Who should get flu vaccines?
everyone
What are the flu vaccine contraindications?
anaphylactic hypersensitivity to eggs, allergy to himerosol, history of guillain-barre, acute febril conditions (Delay until symptoms abate)
How many deaths are caused by pneumonococcal pneumonia yearly?
40,000 (causes 10-20% of bacterial pneumonias0
What’s the common side effect of the pneumococcal vaccine?
up to 50% have local erythema and soreness
How often should people be revaccinated against pneumonococcal pneumonia?
ever 5 years for IF initial immunization was before 65 (and for patient swith chronic renal failure, nephrotic syntrome, transplanted organs or asplenia)
Who should be given the Hep A vaccine?
travelers to high risk areas like mexico, south america, africa, south east asia, etc.
high risk populations like injection drug users
individuals with chronic liver disease
military personnel
maybe health care providers