Answer & Explanation:
When picking up a baby with a fever and an exanthem (a rash), a common childhood disease symptom to look for is whether the rash is maculopapular (raised and flat red dots or bumps) or vesicular (small fluid-filled blisters). The presence of a maculopapular rash indicates a possible illness such as measles, rubella, or scarlet fever, while a vesicular rash may indicate chickenpox or hand, foot and mouth disease. It's important to seek medical attention and have a healthcare professional evaluate the rash and other symptoms to provide proper diagnosis and treatment.