October 23, 2026
Vax Facts Friday 10.23.26
Q: Which side effect is known to be caused by vaccines?
A. Fever
B. Hair loss
C. Decrease in shoe size
D. Profuse sweating
The correct answer is A. Fever
Fever is a common side effect caused by vaccines. Fevers typically develop after a vaccine is given because the immune system is responding to the vaccine. Other common side effects that can occur after a vaccine include pain, redness or tenderness at the injection site.
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