Anti-At a is a rare alloantibody and its clinical significance has not been entirely clear. This
case study reports the detection of anti-At a from a 43-year-old African American female who …

BACKGROUND: Anti‐Ata is a rare red cell (RBC) alloantibody found in the black population.
It has been described as causing one case of mild hemolytic disease of the newborn, but its …

BACKGROUND: There is a paucity of data on the August (At) blood group antigen and
clinical significance of anti‐Ata. STUDY DESIGN AND METHODS: A proposita with the At (a …

Background Anti-Augustine antigen (Ata) is a high-prevalence RBC antigen, and anti-Ata is
an extremely rare RBC alloantibody. Anti-Ata is usually produced by an Ata (–) individual …

Dear Editor, Anti-Augustine antibody (Ata) are a high-prevalence red blood cell (RBC)
antigen and are not assigned to a blood group system, and anti-Ata is an extremely rare …

Introduction Anti-A1 antibody found in A2 and A2B patients binds A1 cells. In most cases,
anti-A1 is of no clinical significance, reacting well below body temperature, and is merely a …

Abstract” Auto-anti-A1” has been sparsely discussed in the literature. Only few workers in the
past depicted such antibody in transfused and nontransfused patients. The current case is …

The Ata blood group antigen (now AUG2 in the Augustine system) is a high‐frequency
antigen with negative phenotype At (a−) found only in individuals of African ancestry. In a …

We report the case of an acute hemolytic transfusion reaction in a patient with A2 serum due
to an anti-A1 antibody reactive at 37° C. The anti-A1 appeared to follow immunologic …

A hemolytic transfusion reaction in an A2B patient due to anti‐A1 is described. Anti‐A1 was
first detected simultaneously with the removal of transfused A1 red blood cells. The antibody …