Final answer:
Hepatitis B (HBV) is spread through physical contact, as well as through blood, and saliva, leading to both acute and chronic liver infections and associated with a risk of liver cancer.
Step-by-step explanation:
Hepatitis B (HBV) is the type of hepatitis that is commonly spread through various body fluids including blood, semen, and saliva. It can be transmitted through physical contact as well as from infected mothers to their newborns during birth, through contaminated needles, and from exposure to infected blood or body fluids by health-care workers. The virus can lead to both acute and chronic infections, potentially causing cirrhosis or liver failure, and is associated with liver cancer.