M.A. Ivanova¹, M.V. Vorobiev^2
1Federal Research Institute for Health Organization and Informatics of Ministry of Health of the Russian Federation, Moscow
²Ivanovo State Medical Academy

Summary. Analysis of the incidence dynamics of viral Hepatitis B in the Ivanovo region over the last eight years has identified a steady trend towards decreased rates till 2009 followed by a rise. Over the period under study the viral Hepatitis B incidence rate within the Ivanovo region decreased 4.6 times. However, with respect to the previous year a trend towards increase has been reported again with the incidence rate increasing 1.3 times. The majority of cases were parenteral transmission.

Objective of the study was to analyze epidemiological situation related to viral Hepatitis B and identify its major ways of transmission within the Ivanovo region.

Materials and methods included retrospective analysis of viral Hepatitis B cases detected during health encounters at health care facilities of the Ivanovo region.

Results and conclusions. Results of the study show that incidence in certain administrative districts of the region outnumber the average regional mortality rate. Sexually active ages are most vulnerable in terms of viral Hepatitis B infection. Parenteral infection with viral Hepatitis B in health care facilities is being reported annually. The majority of infected cases happened during dental visits.

Almost annually occupational infection of medical staff has been registered as well as infection of injecting drug users. In terms of social affiliation the highest rates have been registered among students of higher education institutions, colleges and vocational schools as well as medical care providers.

Almost every third viral Hepatitis B case was registered by narcological and dermatovenerological facilities.

The analysis results show that monitoring over transmission and development of safer methods of infection prevention are required to decrease the risk of viral Hepatitis B infection in healthcare facilities.

Keywords: incidence; viral Hepatitis B; infection; age; risk of infection.

References

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