<scp>HNA</scp>‐3 gene frequencies in <scp>B</scp>razilians and a new polymerase chain reaction–restriction fragment length polymorphism method for <scp>HNA</scp>‐3a/3b genotyping

Abstract

The frequencies of HNA-3 genotypes in Brazilian blood donors is similar to that described in Caucasians; however, all Amerindians were HNA-3a/a, African Brazilians showed a lower frequency of HNA-3b/b, and Japanese had a higher prevalence of HNA-3b/b, suggesting that they may be at risk for developing anti-HNA-3a alloantibodies.