sethbrandy
sethbrandy sethbrandy
  • 04-05-2020
  • Health
contestada

refers to the early inoculations that used smallpox virus to produce immunity.
Demography
Vaccination
Variolation
Pathogen​

Respuesta :

jessie422
jessie422 jessie422
  • 04-05-2020
The answer is vaccination! hope this helped ;)
Answer Link

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