Hepatitis C in the Russian Federation: challenges and future directions.

Hepatitis C virus (HCV) infection is one of the most prevalent health problems in the world. Official registration of HCV infections in the Russian Federation started in 1994. Two clinical forms of infection - acute and chronic hepatitis C - are registered separately.

[Frequency of antibodies against surface and nuclear antigens of hepatitis B virus in population of St. Petersburg in 2013].

Aim: Determine the frequency of antibodies to surface (anti-HBs) and core (anti-HBc) antigens of hepatitis B in population of St. Petersburg of various age for evaluation of protective herd immunity against hepatitis B virus (HB).

Materials And Methods: Blood sera of 970 individuals (491 males, 479 females) of 10 age groups from 0 to 50 years and older were examined for the presence of anti-HBs and anti-HBc IgG by enzyme immunoassay using commercial diagnostic test-systems.

[Vaccination against hepatitis A among occupational risk groups].

The study was aimed to evaluate vaccine prevention of hepatitis A in occupational risk groups in Russian Federation over 2011-2013. Epidemiologic analysis method was used. Data array for the analysis included information about 1,162,619 individuals vaccinated against hepatitis A throughout the country.

[Seroepidemiology of hepatitis A in Saint-Petersburg in 2009].

Aim: To determine immune structure of different population groups in Saint-Petersburg to hepatitis A virus in 2009 in order to study trends of epidemic process dynamics and planning of prophylactic measures.

Materials And Methods: Nine hundred and three citizens of Saint-Petersburg aged 3 months to 60 years were tested for anti-HAV by ELISA in 2009. Results were compared with data of previous study conducted in Saint-Petersburg in 1999.

Modern epidemiology of hepatitis A in the north-western region of the Russian Federation.

The epidemiological features of hepatitis A virus (HAV) infection were studied in eleven territories located in the north-western region of the Russian Federation. The dynamics of HAV infection in Russia and in the region were evaluated during a 17-year period. The age-specific incidence was calculated and 229 305 patients with acute HAV were identified.