Convalescent plasma (CP) has emerged as a treatment for COVID-19. However, the
composition and mechanism of action are not fully known. Therefore, we undertook a two …

Autoimmune responses mediated by autoantibodies have been observed in SARS-CoV-2
infection. Herein, we evaluate the presence of rheumatic, thyroid and phospholipid …

Point‐of‐care testing (POCT) is experiencing a groundbreaking transformation with
microfluidic chips, which offer precise fluid control and manipulation at the microscale …

Objective The clinical coexistence of two or more autoimmune diseases (ADs) fulfilling
classification criteria is termed “overt polyautoimmunity”(PolyA), whereas the presence of …

The recent publication 1 2 of the European League Against Rheumatism (EULAR)/American
College of Rheumatology (ACR) criteria for the classification for systemic lupus …

Context Antinuclear antibodies (ANAs) against certain antigens are useful for identifying
autoimmune disorders. Although new solid phase–based immunoassays have been …

Although the VALID act failed to advance through Congress and become law in early 2023,
it was disappointing to see a new attempt by the US FDA to change the regulatory paradigm …

Autoimmune diseases are a diverse group of disorders characterized by immune
disturbances that cause aberrant B cell and T cell reactivity to normal constituents of the host …

Recently, a series of letters has been published in the Annals of the Rheumatic Diseases 1–
10 in response to an article by Pisetsky et al on the variability of indirect …

We would like to thank Dr Bossuyt and colleagues 1 for their comments on our article on
variability in testing for antinuclear antibodies (ANA). 2 This letter, along with previous …