sorry muchlovex - answer got cut off mid flow, as it were.
Other points.
1. Hepatitis B cannot be cured.
2. There is a vaccine against Hep B, which is usually given in early childhood, and boosters given to health and related professionals.
3. Since the transmission is via bodily fluids, he will be prevented from donating blood, semen and body organs.
4. He can most definitely transmit the virus to his partner, and existing family members, through carelessness with cuts etc, or using shared items.
5. Should his partner be infected and then become infected, the virus could most definitely be passed to the baby ( vertical transmission). There are treatment protocols to try and aid the baby in these cases, but they are not the most effective.
6. He would need long term regular monitoring by health professionals.
I have included a weblink to a wiki page which offers a good comprehensive starter.
http://en.wikipedia.org/wiki/Hepatitis_B