The first case of the p phenotype in a Gurkha Nepalese

Abstract

A serum sample from a Gurkha Nepalese soldier, residing in Hong Kong, was found to cause hemolysis of reagent ABO red cells (RBCs) in the reverse blood grouping test. Subsequent follow-up studies revealed that he was of the p phenotype, with potent anti-PP1P k that was strongly hemolytic both at room temperature and 37°C. The anti-PP1P k was composed of IgG and IgM, and its various components were separable.