<em>Vaccines work by simulating an illness to help establish immunity. However, while this sort of infection nearly never produces sickness, it does trigger the immune system to create T-lymphocytes and antibodies. The imitation illness can sometimes induce modest symptoms, like as fever, after receiving a vaccination.</em>
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<em>- RobertOnBrainly</em>
Answer:
A
Explanation: I looked it up
D) all of the above
Before 18th century, epilepsy was believed to be cause by “phlegma” and “divine punishment”. This caused the people with epilepsy to suffer discrimination. Society believed epileptics were abnormal. As science advanced, it was proved that epilepsy was actually caused by neurologic problems.
