Which of the following is commonly associated with Hepatitis B?

Hepatitis B is primarily transmitted through blood and bodily fluids, making blood exchange the most common route of transmission for this virus. This can occur through activities such as sharing needles, exposure to infected blood in healthcare settings, or from mother to child during childbirth. Understanding this mode of transmission is crucial for prevention and control of the virus.

In contrast, routes like fecal-oral transmission, airborne transmission, and contamination via water sources are associated with other infectious diseases. For example, Hepatitis A is known for fecal-oral transmission, while respiratory illnesses are often spread through the airborne route. Similarly, waterborne diseases may arise from drinking contaminated water but do not relate to the transmission of Hepatitis B. Hence, recognizing blood exchange as the primary transmission route emphasizes the need for safe practices regarding blood exposure to mitigate the spread of Hepatitis B.