title: Hepatitis A in Poland in 2012.
abstract: OBJECTIVE
  The aim of the article is evaluation of the epidemiological situation of hepatitis A in Poland in 2012.
  
  
  METHODS
  Assessment of epidemiological situation of hepatitis A was based on results from analysis of the annual bulletins: "Infectious diseases and poisonings in Poland in 2012", "Vaccinations in Poland in 2012", reports from individual cases and epidemiological investigations of outbreaks linked to hepatitis A, sent by Epidemiological Departments in Sanitary Epidemiological Stations to the Department of Epidemiology at NIPH-NIH.
  
  
  RESULTS
  In Poland, 71 cases of hepatitis A were registered in 2012. The incidence of 0.17/ per 100 000 inhabitants was slightly higher than previous year. The incidence of hepatitis A ranged from 0.08/100 000 in Łódzkie and Podlaskie to 0.35/100 000 in Śląskie. The incidence of hepatitis A in men and women was at an approximate level and amounted to 0.19 and 0.18/100 000 respectively. The peak of incidence was recorded during the summer and autumn-winter months. In 2012 imported cases constituted 52.1% of all cases of hepatitis A. There were five outbreaks involving of 11 registered cases in 2012.
  
  
  CONCLUSIONS
  In 2012, there was a slight increase in the incidence of hepatitis A in compared with the previous year. However, apart from that there were no significant changes in the epidemiological situation of hepatitis A. In Poland there is still very low endemicity for hepatitis A. Decreased incidence and the small number of people vaccinated against hepatitis A facilitates the accumulation of a fairly numerous population of persons susceptible to infection which is connected with the possibility to increase the number of cases of hepatitis A. Despite the fact that the current epidemiological situation of hepatitis A in Poland is good, the disease still requires monitoring and analysis within the framework of epidemiological surveillance system.
authors.affiliation: Department of Epidemiology, National Institute of Public Health - National Institute of Hygiene (NIZP-PZH) in Warsaw.
authors.forename: Anna
authors.initials: A
authors.lastname: Baumann-Popczyk
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D002675:Child, Preschool; D004196:Disease Outbreaks / Q000517:prevention & control* / Q000706:statistics & numerical data*; D005260:Female; D006506:Hepatitis A / Q000453:epidemiology* / Q000517:prevention & control; D022362:Hepatitis A Vaccines / Q000627:therapeutic use*; D006801:Humans; D015994:Incidence; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D032541:Mass Vaccination / Q000706:statistics & numerical data; D008875:Middle Aged; D011044:Poland / Q000453:epidemiology; D012424:Rural Population / Q000706:statistics & numerical data; D012737:Sex Factors; D014505:Urban Population / Q000706:statistics & numerical data; D055815:Young Adult
chemical_list: D022362:Hepatitis A Vaccines
keywords: 2012; Poland; epidemiology; hepatitis A; public health