system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 39-year-old woman comes to the physician because of a 5-day history of pain and stiffness in her hands and wrists and a nonpruritic generalized rash. The stiffness is worst in the morning and improves after 15–20 minutes of activity. She had fever and a runny nose 10 days ago that resolved without treatment. She is sexually active with a male partner and uses condoms inconsistently. She works as an elementary school teacher. Her temperature is 37.3°C (99.1°F), pulse is 78/min, and blood pressure is 120/70 mm Hg. Examination shows swelling, tenderness, and decreased range of motion of the wrists as well as the metacarpophalangeal and proximal interphalangeal joints. There is a lacy macular rash over the trunk and extremities. Laboratory studies, including erythrocyte sedimentation rate and anti-nuclear antibody and anti-dsDNA serology, show no abnormalities. Which of the following is the most likely cause of this patient's symptoms?
assistant
Parvovirus arthritis