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Hepatitis B is a dangerous infectious disease caused by HBV. Viet Nam has been in a high hepatitis endemic area with the prevalent of HBsAg ranging from 10% to 20%. Some researches showed that in Viet Nam, HBsAg prevalence in pregnant women has been higher than 10%. If mother is infected, from 10% to 90% of new-born child may be transmitted. About 90% of infant infected by vertical transmission may develop chronic HBV infection and 25% of them may develop liver cancer and cirrhosis. Vertical transmission from mother to child during childbirth is the most dangerous transmission route.

Vaccines against rotavirus, a leading cause of diarrhea-related deaths among young children, first became available in 2006. However, a new study indicates vaccination has been slow to blunt the spread of the infection. The study combines findings from numerous other studies as well as data collected in a World Health Organization-coordinated program, the Global Rotavirus Surveillance Network. Study co-author Umesh Parashar, of the U.S. Centers for Disease Control and Prevention (CDC) says rotavirus infection is common throughout the world.
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New polio cases reported in the past week for 2011: 16; Total number of cases in 2011: 536; Total number of cases in 2010: 1352.
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The year 2010 was the second year after the national dengue control and prevention program which was restored and re-operated. 28/28 provinces and cities in the north of the country were still in the period of completing the network of dengue control and prevention.


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