Exam 5—Vaccination Flashcards
variolation
dried pustules from smallpox were inhaled or rubbed into skin to prevent smallpox
resulted in smallpox infection 1/100 times
first vaccine
1796 - Jenner - cowpox was used to purposefully inoculate people against smallpox
eradication of smallpox in year…
1979
2 first polio vaccines
Salk vaccine - 1955 - 3 killed strains of polio (IPV)
Sabin vaccine - 1963 - 3 live strains of polio - trivalent oral polio vaccine (TVOP) - given in a sugar cube
best practice for polio vaxx
use IPV and then TVOP
polio vaxx crisis
1955 - 94 people became ill from improperly inactivated vaccine
VP7 and VP4
highly variable coat proteins on rotavirus
RotaTeq
based on a cattle virus that has a combination of human and cow antigens
Rotarix
attenuated - contains common versions of coat proteins
Bacille Calmette-Guerin
TB vaxx from cow version
50% effective
not used in USA
toxoid vaccines ex)
Corynebacterium diphtheriae
Clostridium tetani
capsule vaccine ex)
S. pneumoniae
conjugate vaccine
example
Vaccines combine pathogen sugar with a toxoid
ex. Neisseria meningitidis polysaccharide bound to tetanus or diphtheria toxoid
anthrax vaccine type
specifically incites —– response
conjugate
T-cell/cellular
why are adjuvants necessary
Purified proteins alone result in missing B7 signal from dendritic cells