Background The diagnostic challenges associated with the COVID‐19 pandemic resulted in
rapid development of diagnostic test methods for detecting SARS‐CoV‐2 infection. Serology …

Introduction Vaccination represents a cornerstone in mastering the COVID-19 pandemic.
Data on immunogenicity and safety of messenger RNA (mRNA) vaccines in patients with …

Background Despite the high efficacy of the BNT162b2 messenger RNA vaccine against
severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), rare breakthrough …

We measured plasma and/or serum antibody responses to the receptor-binding domain
(RBD) of the spike (S) protein of SARS-CoV-2 in 343 North American patients infected with …

Viral neutralization tests (VNTs) have long been considered old‐fashioned tricks in the
armamentarium of fundamental virology, with laboratory implementation for a limited array of …

The first emergency-use authorizations for COVID-19 vaccines were granted by the Food
and Drug Administration in December 2020, and clinical trials for the approval of more …

Objective To evaluate the effect on immunogenicity and safety of 2-week methotrexate
(MTX) discontinuation after each dose of the Sinovac-CoronaVac vaccine versus MTX …

Objectives Adolescents with juvenile-onset autoimmune inflammatory rheumatic diseases
(AIIRDs) could be at risk for disease flare secondary to severe acute respiratory syndrome …

ABSTRACT SARS-CoV-2 anti-spike antibody concentrations and angiotensin converting
enzyme-2 (ACE-2) inhibition have been used as surrogates to live viral neutralizing antibody …

Objectives To evaluate long-term kinetics of the BNT162b2 mRNA vaccine-induced immune
response in adult patients with autoimmune inflammatory rheumatic diseases (AIIRD) and …