Which of the following diseases is caused by a bloodborne pathogen?

Hepatitis C is a disease caused by a bloodborne pathogen, specifically the Hepatitis C virus (HCV). Bloodborne pathogens are infectious microorganisms present in blood that can cause disease in humans. Hepatitis C is primarily transmitted through direct contact with infected blood, which is characteristic of bloodborne transmission. This can occur through various means such as sharing needles or other equipment to inject drugs, from transfusions or organ transplants with infected blood, and less commonly, through sexual contact or from an infected mother to her child during childbirth.

In contrast, while Hepatitis B is also a bloodborne pathogen, the question specifically asked which of the listed diseases is caused by a bloodborne pathogen with the provided answer focusing only on Hepatitis C. Influenza is caused by a virus primarily transmitted through respiratory droplets, and tuberculosis is caused by a bacteria that spreads through the air when an infected person coughs or sneezes.