BI-288
Vaccines
Biology · Secondary 3 · Medium · Vaccines
A vaccine against measles is injected into a healthy child. How does this vaccination help to protect the child from future measles infection?
- It stimulates white blood cells to produce antibodies and memory cells against measles.
- It directly kills any measles viruses already inside the child’s body.
- It permanently raises the child’s body temperature above normal.
- It replaces the child’s red blood cells with stronger ones.
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