Changes in the epidemiological situation of hepatitis B in Kielce region, after introduction of vaccination of infants against hepatitis B
Patrzałek, M.; Tarnowska, H.
Przeglad Epidemiologiczny 53(1-2): 181-185
1999
ISSN/ISBN: 0033-2100 PMID: 10402866 Document Number: 511365
The study presents epidemiology of hepatitis B in the region Kielce in the central part of Poland. The number of registrated cases and their age distribution were analyzed in the prevaccination period of 1990-92 and 1995-97 when the obligatory vaccination of infants against hepatitis B was introduced. The significant decrease in the number of cases among young, below 4 years old children was recorded. There were no new cases of hepatitis B in the group of vaccinated children during hitherto 4-year period of observation. The analysis of the role of hospital contacts in the spread of infection, suggest that still more than half of infections occurred in hospitals, although the role of surgical departments in the spread of infections has been reduced in last three years.