VHPB International Congress. Madrid, ESP, 1997/11/17.
The strategy to eliminate hepatitis B virus (HBV) transmission in the United States is comprised of the following components : (1) preventing perinatal transmission. (2) routine infant vaccination. (3) catch-up vaccination of children in high-risk groups at any age, (4) catch-up vaccination of all children at 11. 12 years of age and (5) vaccination of adolescents and adults in high-risk groups.
According to recent surveys.>85% of pregnant women are screened for hepatitis B surface antigen (HBsAg).
Of infants horn to HBsAg-positive women identified in 1995,93% received appropriate immunoprophylaxis at birth ; however, only 69% were fully vaccinated by 6 8 months of age.
From 1991 (when routine infant hepatitis B vaccination was first recommended) to 1996, the proportion of 19 35-month-old children who have received three doses of hepatitis B vaccine has increased from<10 to 83%. During this time. rates of acute hepatitis B in children 7 10 years of age have declined by 27% and rates among children 3 6 years of age have declined by 62%. Implementation of programmes for catch-up vaccination of all adolescents at 11 12 years of age and for vaccination of adolescents and adults in high-risk groups have only recently begun and no data are available to assess the progress of these programmes.
However, 26% (13 ; 50) of states now have laws requiring adolescents to be vaccinated in order to enter school. (...)
Mots-clés Pascal : Homme, Vaccination, Programme sanitaire, Prévention, Transmission homme homme, Facteur risque, Hépatite virale B, Virose, Infection, Appareil digestif pathologie, Foie pathologie, Etats Unis, Amérique du Nord, Amérique
Mots-clés Pascal anglais : Human, Vaccination, Sanitary program, Prevention, Transmission from man to man, Risk factor, Viral hepatitis B, Viral disease, Infection, Digestive diseases, Hepatic disease, United States, North America, America
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 99-0145905
Code Inist : 002B05A02. Création : 16/11/1999.