Which method accounts for the majority of bloodborne pathogen exposures?

Needlesticks account for the majority of bloodborne pathogen exposures because this method involves the direct piercing of the skin with a needle that may be contaminated with blood containing infectious pathogens, such as HIV, hepatitis B, and hepatitis C. The risk of transmission is notably higher with needlesticks compared to other methods because the needle can directly introduce pathogens into the bloodstream, bypassing several layers of the body's defenses.

In healthcare settings, needlesticks are common occurrences, especially when handling sharps or when proper safety protocols are not followed. Comprehensive training and safety measures, like the use of safety-engineered devices, are critical in reducing these incidents and thereby minimizing the risk of transmission of bloodborne diseases.

While skin abrasions and human bites can potentially expose individuals to pathogens, they do not account for the same volume of documented cases as needlesticks. Swimming in contaminated water poses a different type of risk that is not directly related to bloodborne pathogen transmission in the way needlestick injuries are.