People with the following lifestyle pose a risk of HBV -
Having sex with a person infected with HBV priorly
Men having sex with other men
Living with someone who has the HBV infection
A baby whose mother has the HBV
Sharing needles for intravenous purposes
Working in a healthcare environment where exposure to HBV is common
Getting organ transplant
Getting blood transfusion
People with a prior HBV infection