Alcohol must be avoided at all costs, even up to six months after the end of the disease because the liver will need a long recovery period. Although Hepatitis B is of less concern than the A strain to most travellers it does deserve more attention. Worldwide there are roughly 300 million chronic carriers. The symptoms are more or less the same, only more severe. Permanent liver damage is a serious risk as is liver cancer.
Incubation time is two to six months.
A vaccine is available. First you're given two injections, normally at least one month apart. A third one five months after the second will provide long-lasting protection. Patients suffering from Hepatitis B can become lifelong chronic carriers. The disease is primarily spread by drinking water contaminated by human faeces.