title: Impact of vaccination against HBV on hepatitis B incidence in Opolskie province in 2007-2011.
abstract: OBJECTIVE
  This article aimed at evaluating the impact of HBV vaccination in population included and not listed in the National Immunization Programme (NIP) on hepatitis B incidence in Opolskie province in 2007 - 2011.
  
  
  METHODS
  Analysis was based on data provided by the Sanitary and Epidemiological Inspection under epidemiological surveillance conducted, i.e. MZ-56, MZ-57 reports (reports on cases of infectious diseases), MZ-54 reports (reports on vaccinations) and 'Questionnaires on hepatitis type B and C'. A total of 446 records of detected and confirmed hepatitis B cases, registered in 2007-2011 in district sanitary and epidemiological stations, were subject to analysis.
  
  
  RESULTS
  In 2007-2011, hepatitis B incidence in Opolskie province was higher compared to the average incidence in Poland and was increasing in the successive years (5.8; 6.6; 7.9; 11.8; 11.0 per 100,000 population). An increase of incidence resulted from increasing number of patients with chronic hepatitis B (chronic HBV), i.e. from 47 in 2007 to 119 in 2010 and 110 in 2011 compared to decreasing number of acute infections (acute HBV). In the analyzed period, no new infections were reported in the following age group 0-9 years in Opolskie province. Only 3 cases (chronic stage) were noted in the age group 10-14 years. Of 446 patients, diagnosed with hepatitis B, 309 (69.3%) were not vaccinated. The remaining cases of acute or chronic hepatitis B were vaccinated, including 124 (27.8%) and 13 individuals with complete and incomplete vaccination, respectively.
  
  
  CONCLUSIONS
  This analysis suggests an important role of HBV vaccination in the prevention of HBV infections. In case of individuals at the age older than that specified in the NIP, especially adults, it is recommended to perform diagnostic tests for HBV infection prior to vaccination. Furthermore, it is required to undertake activities aimed at promoting HBV vaccination in populations which are not included in the NIP.
authors: Sanitary and Epidemiological Station in Opole.
authors: Anna
authors: A
authors: Matejuk
authors: Division of Infectious Diseases and Hepatology, Faculty of Dentistry, Wroclaw Medical University.
authors: Krzysztof
authors: K
authors: Simon
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D002648:Child; D002675:Child, Preschool; D004196:Disease Outbreaks / Q000517:prevention & control* / Q000706:statistics & numerical data*; D005260:Female; D006509:Hepatitis B / Q000453:epidemiology* / Q000517:prevention & control*; D017325:Hepatitis B Vaccines / Q000627:therapeutic use*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D032541:Mass Vaccination / Q000706:statistics & numerical data; D008875:Middle Aged; D011044:Poland / Q000453:epidemiology; D012189:Retrospective Studies; D012424:Rural Population / Q000706:statistics & numerical data; D014505:Urban Population / Q000706:statistics & numerical data; D055815:Young Adult
chemical_list: D017325:Hepatitis B Vaccines