Portugal has moved a step forward in stamping out gay prejudice in blood donation programmes.The country's parliament approved four bills on Friday that enshrine Portugal’s rules and procedures on blood donations in lawThe move was made amid reports that some citizens are being turned away due to their sexual orientation.The Portuguese Constitution forbids discrimination based on sexual orientation, and prejudice in blood donations has been specifically prohibited since 2010.But some health workers have allegedly refused to accept homosexual and bisexual donors, claiming their sexual behaviour places them at a heightened risk for transmissible diseases.Portugal's governing Socialist Party said it had received reports of discrimination,.