What term refers to materials that are contaminated with blood or body fluids and pose the risk of disease transmission?

The term that refers to materials contaminated with blood or body fluids, which pose a risk of disease transmission, is biohazardous. This classification is important in health care and laboratory settings as it specifically denotes materials that are potentially infectious and can lead to the spread of diseases. By identifying these items as biohazardous, proper protocols for handling, storage, and disposal can be implemented to minimize risks to health workers, patients, and the public.

In the context of the other options, "infectious waste" is closely related and includes a broader category of waste that may not necessarily be focused solely on blood or body fluids. "Hazardous materials" can refer to a wider range of substances that may not be biological in nature, including chemicals and toxins unrelated to infectious risks. Lastly, "filth" is a general term that does not specifically address the health risks posed by contaminated materials. Thus, biohazardous is the most precise and accurate choice for indicating the risk associated with contaminated materials in the context of disease transmission.