What is the fundamental concept of both standard precautions and universal precautions?

Standard precaution represent minimum infection prevention measures that apply to all patients care, regardless of the confirmation of the infection status
Universal precaution is an apporach to infection to treat all human blood and certain human bodily fluids

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You can always get a sexually transmitted disease. always ask for consent before doing anything..because you never know if your bf or gf has an std!