Hepatitis B ; immunology ; prevention & control ; Hepatitis B Vaccines ; immunology

In 2006, 2014 and 2020, the positive rates of HBsAg in 560, 384 and 402 children aged 1 to 14 years were 4.5%, 2.6% and 2.5%, respectively, with no statistically significant differences (P>0.05). The positive rate of anti-HBs was highest in 2014 (57.8%) and lowest in 2006 (34.1%) (P<0.05). The positive rate of anti-HBc was highest in 2006 (15.7%), and decreased in 2014 (7.8%) and 2020 (5.7%) (P<0.001). The timely rate of the first dose of hepatitis B vaccine for children in Lhasa in 2006, 2014 and 2020 was 7.7% (43/560), 50.3% (193/384) and 94.8% (381/402), respectively. The overall vaccination rates were 15.4% (86/560), 35.2% (135/384) and 96.0% (386/402), respectively, showing a trend of gradual increases (χtrend values were 718.63 and 589.59, both P values<0.001).
Child ; Humans ; Hepatitis B Vaccines ; Hepatitis B/prevention & control* ; Hepatitis B Surface Antigens ; Hepatitis B virus ; Hepatitis B Antibodies ; Vaccination

In Vietnam, the rate of chronic hepatitis B was very high (15-20%). The rate of chronic hepatitis C (was 2-3%) but increasingly. Especially, these rates among addicts were very high. They were two major causes of the primary liver cancer, followed by alcoholism and use of aflatoxin. Therefore, the program of primary liver cancer prevention should concentrate the hepatitis B and hepatitis C prevention and control a well as risk of alcoholism and use of aflatoxin
Liver Neoplasms ; Hepatitis B ; prevention & control

The study aims at description of awarness and practicr of B virus hepatitis control in 190 pregnant women in Cau Giay District, Ha Noi City, year 2002. It is a described horiziontal analytical in vestigation. Subjects were interviewed with structural questions. The data were analyzied by Epi-info 6.04 software and test X2 . Results showed a very low level of knowledge and practice skills. Influenced factors are educational level and professional skill as well as information resources. It must be recommended to promote the couselling at commune health station with concise messages. Further studies must be conducted in other districts in the city
Hepatitis B ; Pregnant Women ; Knowledge ; prevention & control

Hepatitis B ; prevention & control ; transmission ; Hepatitis B virus ; Humans ; Infectious Disease Transmission, Vertical ; prevention & control

Hepatitis B ; blood ; epidemiology ; immunology ; prevention & control ; Hepatitis B Surface Antigens ; blood ; Hepatitis B virus ; immunology ; Humans

Hepatitis B ; prevention & control ; Hepatitis B Antibodies ; blood ; Hepatitis B Vaccines ; immunology ; Humans ; Immune Tolerance ; Risk Factors ; Vaccination

Background: hepatitis due to virus B is now one of the leading concerns in the community health care throughout the world. Vietnam was a country located in high risk areas for hepatitis B virus (HBV) infection with rate of HBV infection in the community ranged from 11.3 to 25.5%, the rate of HBsAg positive in pregnant women from 12-16%. Objectives: to evaluate knowledge and practice on HBV prevention among pregnant women in Hanoi in 2005-2006 period; to study on some related factors of HBsAg positive rate. Subjectives and Method: a cross sectional study (with analysis on knowledge and practice about HBV prevention) was carried out on 1.300 pregnant women above 28 gestational weeks at Hanoi Obstetrics/Gynecology Hospital in 2005. Results: the rates of women with knowledge about HBV prevention were 38.5% at good level, 24.4% at acceptable level, and 37.7% at unacceptable level. The rates of practice on HBV prevention were 58.5% at satisfied level and 41.5% at notsatified level. Knowledge was likely related to practice, age, educational level, and HBV positive rate. Practice on HBV prevention was also related to HBV infection. Conclusions: the rates of women with knowledge about HBV prevention at good level were relatively high. The rates of practice on HBV prevention at satisfied level were relatively low. Related factors of HBsAg positive rate: knowledge and practice about HBV prevention.
Hepatitis B/ prevention & ; control ; Hepatitis B Surface Antigens ; Health Knowledge ; Attitudes ; Practice ; Pregnant Women ;

Hepatitis B ; prevention & control ; Hepatitis B Vaccines ; adverse effects ; Humans ; Immunization

Adult ; China ; epidemiology ; Hepatitis B ; prevention & control ; Hepatitis B Vaccines ; Humans ; Practice Guidelines as Topic ; Vaccination