I had to have my blood tested and it came back with a positive reading to HB-CAB. It was negative with every other test. My hematologist told me that I had been exposed to the antibodies of Hepatitis B, and that I could develop the illness at any time. I have never had any form of hepatitis in my life. My hematologist also told me I could not get vaccinated against Hep b now either. Can I go on to develop full blown Hep B? Can I pass it on to my partner through sexual intercourse? What should I do?