Blood-borne transmission occurs through which type of contact?

Blood-borne transmission specifically refers to the transfer of pathogens through direct contact with blood. This type of transmission is a critical consideration in infection control because blood can harbor a variety of infectious agents, including viruses, bacteria, and other pathogens.

When the contact is categorized as blood-to-blood, it typically occurs through sharing needles, exposure to open wounds, or any scenario where blood from one individual may enter another individual's bloodstream. Understanding this pathway is essential for dental assistants and other healthcare professionals in implementing appropriate safety and infection control measures to protect both patients and staff from potential infections.

Saliva-to-saliva contact does not directly involve blood and thus is not categorized as blood-borne transmission, while surface-to-skin contact generally refers to surface bacteria or contaminants rather than blood pathogens. Similarly, aerosol-to-lung transmission pertains to respiratory pathogens rather than those transmitted via blood.