Yes - you can work as a healthcare worker if you have chronic hep B (and therefore have a persistent HBsAg, in acute Hep B only your HBsAg will decline and disappear). Basically, you can't be infectious.
It would be very very hard to try and qualify and complete foundation training without doing EPP - but it may be possible. Haven't heard any stories of where this has happened, maybe some of you out there have done?
From DoH:
"For new healthcare workers who will perform exposure-prone procedures (EPPs), additional health clearance should also be undertaken. Additional health clearance means being non-infectious for HIV (antibody negative), hepatitis B (surface antigen negative or, if positive, e-antigen negative with a viral load of 103 genome equivalents/ml or less) and hepatitis C (antibody negative or, if positive, negative for hepatitis C RNA). These checks should be completed before confirmation of an appointment to an EPP post, as the healthcare worker will be ineligible if found to be infectious."
http://www.dh.gov.uk/en/Publications...ance/DH_073132
