According to relevant statistics in Hong Kong, up to 40% of the population has been infected with Hepatitis B virus, and nearly 600,000 Hong Kong people are carriers of Hepatitis B virus. Hepatitis B virus can result in the death of a large amount of liver cells, damaging liver functions. About 25% of the carriers will develop into chronic hepatitis, cirrhosis or liver cancer. The most effective way to prevent Hepatitis B is to receive vaccinations.