RHD and hepatitis A virus infection: In terms of the RhD antigen, the O RhD +ve blood group was more at risk of developing hepatitis TTIs as 34,248 (3.6%) donors were reported as positive TTIs, followed by A RhD +ve blood group (2.1%), B RhD +ve blood group (1.2%), O RhD −ve blood group (0.34%), AB RhD +ve blood group (0.31%), A RhD −ve blood group (0.16%), B RhD −ve blood group (0.09%), and AB RhD −ve blood group (0.03%).