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HepB proves more prevalent than previously thought One in every five Hong Kong people are carriers of Hepatitis B, a disease that without proper treatment carries a high risk of turning into liver cancer, the number three killer cancer in the city, the local medical group AsiaHep Hong Kong said on Friday.
AsiaHep's mission is to improve recognition of the disease. In that pursuit, the organization provided free Hepatitis B tests to 1,942 people in July, 2011. The results show that 413 people tested positive for the HepB virus, and became identified as carriers of the disease. Among the 413 carriers, about 30 percent needed further assessment or treatment. Nancy Leung Wai-yee, chairwoman of AsiaHep Hong Kong, described the finding as "unexpected and surprising".
"When we first started the free testing, we were expecting that there would be 200 people identified as carriers at the most. However, the number proved to be double that and we have to spend more time to finish the tests," said Leung.
The survey also found that half of the carriers have found out they are infected with the virus years ago in making blood donations or undergoing physical check ups.
Since Hepatitis B has no obvious symptoms, many carriers take the wrong message and believe they don't need treatment or even regular check-ups, missing critical opportunities for therapy, said Leung.
Leung explained that one out of five chronic hepatitis B patients, without timely treatment, will die of liver cancer, liver cirrhosis or other related complications.
According to statistics from the Cancer Registry of the Hospital Authority, in 2009, 1,488 people died from liver cancer, accounting for 11 percent of death from all cancers. And 90 percent of liver cancer cases were caused by the Hepatitis B virus.
The statistics also show that liver cancer is more likely to kill a man than a woman. Among the 1,488 death, 1,072 were men. Liver cancer was ranked as the number two cancer killer for men. On average, about 1,500 men die from liver cancer every year.
Leung said in addition to male hormones, men's consumption habits, such as drinking alcohol may contribute to the revelation of liver cancer.
Echoing Leung's opinion, Michael Li Kin-kong, chief of the division of Gastroenterology of the New Territories West Cluster under the Hospital Authority, said Hong Kong people tend to ignore the risk of Hepatitis B.
Li said among the 400,000 to 500,000 carriers in Hong Kong, only half are receiving treatment. Li also dismissed the belief that Hepatitis B can be transmitted through food, saying that the virus is mostly contagious through blood or body fluid, especially through pregnancy.
Li said though the saliva contains some virus, it is less likely to be transmitted through saliva.
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(HK Edition 07/28/2012 page1)
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