Post 01039e : Hepatitis B Vaccination Impact

POST 01039E : HEPATITIS B VACCINATION IMPACT 14 January 2007 _______________________________________ As they are rather light, we attach to this posting two resumes of articles showing that HepB vaccination produces, after a period of years, sustained declines in hepatitis B incidence in vaccinated birth cohorts. The first "Long-term efficacy of infant hepatitis B immunization program" by Gong J, Li RC, Yang JY, Li YP, Chen XR, Xu ZY, Liu CB, Cao HL, Zhao K, Ni DM, was published in Zhonghua Gan Zang Bing Za Zhi. (Chinese Journal of Infectious Diseases ) 2003 Apr;11(4):203-5. The full article is in Chinese. The second is "Hepatitis B seroprevalence in Thailand: 12 years after hepatitis B vaccine integration into the national expanded programme on immunization", by Chongsrisawat V, Yoocharoen P, Theamboonlers A, Tharmaphornpilas P, Warinsathien P, Sinlaparatsamee S, Paupunwatana S, Chaiear K, Khwanjaipanich S, Poovorawan Y. It was published in Tropical Medicine and International Health. 2006 Oct;11(10):1496-502. The full article is on a pay-per-view basis. We reproduce here questions asked by Robert Davis when circulating these two items: "Now that hep B vaccination of infants is general in most countries, what is the research agenda on unanswered questions in the epidemiology and control of this virus, which is a major cause of liver cancer? Has anyone seen a discussion article on this important subject?" ______________________________________________________________________________ All members of the TechNet21 e-Forum are invited to send comments on any posting or to use the forum to raise a new discussion or request technical information in relation to immunization services. The comments made in this forum are the sole responsibility of the writers and do not in any way mean that they are endorsed by any of the organizations and agencies to which the authors may belong. ______________________________________________________________________________ Visit the TECHNET21 Website at http://www.technet21.org You will find instructions to subscribe, a direct access to archives, links to reference documents and other features. ______________________________________________________________________________ To UNSUBSCRIBE, send a message to : mailto:[email protected] Leave the subject area BLANK In the message body, write unsubscribe TECHNET21E ______________________________________________________________________________ The World Health Organization and UNICEF support TechNet21. The TechNet21 e-Forum is a communication/information tool for generation of ideas on how to improve immunization services. It is moderated by Claude Letarte and is hosted in cooperation with the Centre de , Canada (http://www.ccisd.org) ______________________________________________________________________________ ##text## ##text##