Pereira A, Monteagudo J, Rovira M, Mazzara R, Reverter J C, Castillo R
Department of Hemotherapy and Hemostasis, Hospital Clínico, University of Barcelona, Spain.
Transfusion. 1989 Jul-Aug;29(6):549-51. doi: 10.1046/j.1537-2995.1989.29689318457.x.
An anti-K1 alloantibody developed in a patient infected with Morganella morganii. The serologic behavior and response to dithiothreitol initially suggested that the alloantibody was an IgM. However, flow cytometry and the separation of immunoglobulin classes by serum chromatography revealed that the anti-K1 was constituted solely of IgA. These data suggest that bacteria-induced red cell antibodies might be of the IgA class.