Objectives To define the elementary ultrasound (US) lesions in giant cell arteritis (GCA) and
to evaluate the reliability of the assessment of US lesions according to these definitions in a …

The coronavirus disease-2019 (COVID-19) pandemic continues to be a cause of unprecedented
global morbidity and mortality. Whilst COVID-19 vaccination has emerged as the only …

Introduction/Aims In this study we investigated COVID‐19 vaccination–related adverse
events (ADEs) 7 days postvaccination in patients with idiopathic inflammatory myopathies (IIMs) …

Vaccine hesitancy is considered a major barrier to achieving herd immunity against COVID-19.
While multiple alternative and synergistic approaches including heterologous vaccination…

Objectives To develop an Outcome Measures in Rheumatology (OMERACT) ultrasonography
score for monitoring disease activity in giant cell arteritis (GCA) and evaluate its metric …

Objectives COVID-19 vaccines have been proven to be safe in the healthy population.
However, gaps remain in the evidence of their safety in patients with systemic autoimmune and …

Objective. To test the reliability of Outcome Measures in Rheumatology Clinical Trials (OMERACT)
consensus-based ultrasound definitions for normal and vasculitic temporal and …

Objectives To define chronic ultrasound lesions of the axillary artery (AA) in long-standing
giant cell arteritis (GCA) and to evaluate the reliability of the new ultrasound definition in a web…

Objectives We aimed to compare the spectrum and severity of COVID-19 and vaccine
breakthrough infections (BIs) among patients with IIMs, other systemic autoimmune and …

At the beginning of the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2)
pandemic, patients with inborn errors of immunity (IEI) appeared to be particularly vulnerable …