When having oral sex, the risk of the recipient contracting HIV is relatively low, but not zero. Indeed, the enzymes and proteins contained in saliva can inhibit the HIV virus and reduce the risk of transmission. However, if blood is present in the mouth, the risk of open wounds or mucosal damage is theoretically increased if the recipient has it, since HIV can be transmitted through blood and other body fluids.
Lower risk does not mean no risk, especially if other risk factors are present.
If large amounts of blood are present, this may alter the risk assessment. In this case, or if other sexually transmitted diseases (STIs) are present, the risk of HIV infection may increase.
Is this correct?