Biologic Therapy Is Not Associated with Increased COVID-19 Severity in Patients with Hidradenitis Suppurativa: Updated Findings from the Global Hidradenitis Suppurativa COVID-19 Registry. Read more about Biologic Therapy Is Not Associated with Increased COVID-19 Severity in Patients with Hidradenitis Suppurativa: Updated Findings from the Global Hidradenitis Suppurativa COVID-19 Registry.