clmr
home
ask
about
MINE
MOVIES 2014

HISTORY MEME : (1/3) inventions - Vaccination

Vaccination is the administration of antigenic material (a vaccine) to stimulate an individual’s immune system to develop adaptive immunity to a pathogen. Vaccines can prevent or ameliorate morbidity from infection. The discovery of vaccination is attributed to the British physician Edward Jenner, who in 1796 used the cowpox virus (vaccinia) to confer protection against smallpox, a related virus, in humans. Prior to this use, however, the principle of vaccination was applied by Asian physicians who gave children dried crusts from the lesions of people suffering from smallpox to protect against the disease. While some developed immunity, others developed the disease. Jenner’s contribution was to use a substance similar to, but safer than, smallpox to confer immunity. He thus exploited the relatively rare situation in which immunity to one virus confers protection against another viral disease. Vaccination is the most effective method of preventing infectious diseases; widespread immunity due to vaccination is largely responsible for the worldwide eradication of smallpox and the restriction of diseases such as polio, measles, and tetanus from much of the world. (+)


  1. bonduelle reblogged this from songsofwolves
  2. blackbird315 reblogged this from songsofwolves
  3. writers-woes reblogged this from thecitysmith
  4. walker--bait reblogged this from songsofwolves
  5. polarhis reblogged this from songsofwolves
  6. kaitlin-kelly reblogged this from songsofwolves
  7. hipsterkidult reblogged this from songsofwolves
  8. queenashagreyjoys reblogged this from songsofwolves
  9. wailingsnowflake reblogged this from songsofwolves
  10. an-old-crow reblogged this from do-androids-dream
  11. fireteams reblogged this from thomaslasky
  12. yookwons reblogged this from songsofwolves
  13. empyrean-metamorphosis reblogged this from songsofwolves
  14. beautifulbipolarworld reblogged this from goldandivory
  15. manoosajnabi reblogged this from goldandivory
  16. goldandivory reblogged this from songsofwolves
  17. realdoobz reblogged this from songsofwolves
  18. leloveles reblogged this from songsofwolves
  19. bonecharm reblogged this from jauffre
  20. unstoppablegrin reblogged this from jauffre
  21. xstars-stripesx reblogged this from jauffre
  22. isabeauigraines reblogged this from jauffre
  23. martianmanhunterr reblogged this from jauffre
  24. akouos-archive reblogged this from jauffre