There has been no impact on safety since UK rules changed to permit gay and bisexual men to donate blood, a NHS report has revealed. Findings from the Safe Supplies 2022: monitoring safety in donors and recipients report, produced jointly by NHS Blood and Transplant and the UK Health Security Agency (UKHSA), show there has been no impact on UK blood safety since rules surrounding donating changed in 2021. According to the report, the residual risk of blood contaminated with a newly acquired hepatitis B, hepatitis C or HIV infection being released into the UK supply remained at less than one in a million.