Parvovirus Infection Triggering Still's Disease

Area of Science:

• Infectious Diseases
• Rheumatology
• Immunology

Background:

• Parvovirus B19 infection can trigger systemic inflammatory responses.
• Adult-onset Still's disease (AOSD) is a rare inflammatory condition.
• Distinguishing viral triggers from autoimmune conditions is clinically challenging.

Purpose of the Study:

• To describe a case of acute B19 parvovirus infection presenting with symptoms similar to AOSD.
• To highlight the diagnostic difficulties in differentiating primary viral infection from a virus-triggered autoimmune response.

Main Methods:

• Case report of a 59-year-old male patient.
• Clinical observation of symptoms, disease progression, and treatment response.
• Differential diagnosis considering viral exanthem and autoimmune sequelae.

Main Results:

• The patient presented with a systemic inflammatory reaction overlapping with AOSD criteria.
• Initial presentation suggested acute B19 parvovirus infection.
• Recurrence of symptoms and positive response to treatment supported AOSD triggered by B19 parvovirus.

Conclusions:

• Differentiating primary B19 parvovirus infection from AOSD is challenging due to overlapping symptoms.
• Recurrent symptoms and therapeutic response are key indicators for diagnosing virus-triggered AOSD.