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Passive immunity is obtained through injecting

  • A.Antibiotics
  • B.Vaccines
  • C.Antibodies
  • D.Antigens

Answer: C

Correct answer: Antibodies

Passive immunity is conferred by injecting ready-made antibodies - antiserum or immunoglobulin, as after a snake bite or a possible tetanus exposure. Protection begins at once but fades in weeks. A vaccine does the opposite: it supplies antigen and makes the body produce its own response.

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