A Mother Brings Her 7-Year-Old Daughter to Her Pediatrician's Office

A mother brings her 7-year-old daughter to her pediatrician's office. It is written in the patient's chart that she is not immunized. The child has approximately 50 lesions, mainly concentrated on her trunk. Most of the lesions are vesicular, but a few have scabbed over. According to the mother, her daughter was previously healthy and developed this rash about five days ago. She denies any fevers and the rash appears to be persistently itchy. The RN observes the child itch open a vesicle, revealing a clear fluid.
-A staff member in the office is concerned that the state health department needs to be notified of a suspected case of smallpox infection.The RN caring for the child discusses the distinct differences between the symptoms of chickenpox and smallpox.Which of the following is not true concerning the two diseases?  

A) Smallpox features deep lesions mainly on the extremities,whereas chickenpox features superficial lesions mainly on the trunk.
B) Smallpox patients exhibit a prodromal fever,whereas chickenpox patients do not.
C) Smallpox lesions are filled with clear fluid,whereas chickenpox lesions are filled with a thick,opaque liquid and are distinctly indented in the center.
D) Smallpox is caused by the variola virus,whereas chickenpox is caused by varicella-zoster virus.