Final answer:
Hepatitis B (HBV) is the bloodborne pathogen that can cause serious liver disease but can be prevented through vaccination. It is transmitted through blood or bodily fluids, and the vaccine is recommended for both children and at-risk adults.
Step-by-step explanation:
The bloodborne pathogen that can cause a serious liver disease but has a vaccine available for those at risk of potential exposure is Hepatitis B (HBV). HBV can lead to chronic liver disease, cirrhosis, liver failure, or liver cancer. Transmission typically occurs through exposure to infectious blood or body fluids. Vaccination is highly recommended and is part of the standard vaccination schedule for children. It is also recommended for adults at greater risk, including healthcare workers, intravenous drug users, and those with multiple sexual partners. The HBV vaccine provides a strong layer of protection against the virus.