P‐IG‐9 | Analyzing the Prevalence of Extended Rh Blood Group Antigens Within Australian Blood Donors.

The article focuses on the first national study of ABO RhD prevalence in Australia, revealing a 5% increase in RhD-positive individuals, alongside a rise in B and AB blood groups, likely due to increased immigration from South East Asia, China, and India. The study analyzed blood group phenotype data from 477,602 donors, finding that the prevalence of the R1R1 phenotype rose from an estimated 17.3% to 20.6%, particularly among first-time donors. Additionally, the prevalence of the rr phenotype increased to 19.8% overall, but was lower at 15.2% for first-time donors. The findings suggest that changing demographics may lead to a higher risk of complications such as Haemolytic Disease of the Foetus and Newborn (HDFN) and transfusion reactions, highlighting the need for updated blood group prevalence data to address supply challenges. [Extracted from the article]