Final answer:
Blood, semen, vaginal secretions, and breast milk are considered bodily fluids under standard precautions.
Step-by-step explanation:
Under standard precautions, blood, semen, vaginal secretions, and breast milk are considered bodily fluids. These fluids can carry infectious agents such as viruses and bacteria. Other fluids like urine, feces, and saliva may also contain microbes but are not typically considered high-risk for transmission of infectious diseases.