What is the primary cause of Hepatitis B?

Hepatitis B is primarily caused by the Hepatitis B virus (HBV), which is transmitted through specific routes involving blood and other bodily fluids. The most common modes of transmission are sexual contact with an infected individual, exposure to contaminated blood (such as through sharing needles), and contact with other bodily secretions. This highlights the significance of practicing safe sex and using sterilized medical equipment to prevent the spread of the virus.

The other mentioned modes of transmission are not relevant to Hepatitis B. Airborne transmission generally pertains to respiratory viruses, contaminated food is associated with gastrointestinal viruses, and insect bites do not transmit Hepatitis B, as it requires direct human-to-human fluid exchange for transmission. Understanding these distinct modes of transmission is crucial for effective prevention and management of Hepatitis B.