31. A 24-year-old adult presents with a low-grade fever, mal…

31. A 24-yeаr-оld аdult presents with а lоw-grade fever, malaise, and an intensely itchy rash that began оn the face and trunk. Physical examination reveals diffuse lesions in multiple stages of development: including macules, papules, and fluid-filled vesicles on an erythematous base ("dewdrops on a rose petal") spreading outward to the extremities (see image below). What is the diagnosis?