d5akirdelameow d5akirdelameow

27-12-2015
Biology

contestada

When getting a vaccination, which substance is
injected into the body?
(1) bacteria to combat a pathogen
(2) white blood cells to engulf a pathogen
(3) a weakened form of a virus
(4) antibiotics to kill a virus

Respuesta :

03-01-2018

Answer – 3. A weakened form of a virus
When getting a vaccination, the substance which is injected into the body is a weakened form of a virus. This weakened from of the virus has the ability to arouse the body’s defense mechanism without causing an infection.

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