Which of the following is a common sign or symptom of illness?

• A. Fever
• B. Burns
• C. Bruises
• D. Diarrhea

Answer: (A)

A fever is a common sign of illness because it reflects the body's immune response to infection. When someone has a fever, their temperature rises as the body fights off illness, and caregivers can often notice it by feeling heat or by using a thermometer. This makes fever a reliable, observable indicator that a child may be sick and may need rest, fluids, and possibly to stay home from group care to prevent spreading illness. Burns and bruises point to injuries rather than illness, so they aren’t signs that the body is fighting an infection. Diarrhea can occur with illness as a symptom, but fever is the more general and recognizable sign that something is going on health-wise.