Which of the following is considered a bloodborne pathogen?

HIV is considered a bloodborne pathogen because it is transmitted through direct contact with infected blood and certain other body fluids. Bloodborne pathogens are microorganisms that are present in human blood and can cause disease in humans. HIV, or Human Immunodeficiency Virus, specifically targets the immune system, leading to acquired immunodeficiency syndrome (AIDS) if untreated.

In contrast, the other options listed are not classified as bloodborne pathogens. Influenza, Hepatitis A, and common cold viruses are primarily transmitted through respiratory droplets or contact with surfaces, rather than through blood. Hepatitis A is a liver infection caused by a virus that is primarily spread via the fecal-oral route, differing fundamentally in its transmission characteristics from bloodborne pathogens like HIV.