WHO recommends the inclusion of PCVs in childhood vaccination programs world-wide. Many countries including the Russian Federation are currently planning the inclusion of PCVs in their National Immunization Programs and, therefore, data on the pneumococcal serotype distribution is important to estimate the potential disease impact. Here we review eight recent epidemiological studies on the pneumococcal serotype distribution from Russia. Across all studies, serotypes 6B, 14, 19F and 23F were the most prevalent. Interestingly, serotype 3 was relatively common. Serotype 19A was prevalent among AOM, CAP and nasopharyngeal isolates and among antibiotic resistant isolates in all age groups. The differences in serotype coverage between PCV10 and PCV13 were up to 26%. Based on the current data on serotype distribution, a wide use of PCVs in Russia may lead to a significant reduction of the pneumococcal disease burden.
Staphylococcal meningitis (SM) ranks fourth in the etiological structure of purulent bacterial meningitis in the Russian Federation. The most common cause of staphylococcal meningitis is Staphylococcus aureus, which accounts for 68 % of all cases. This meningitis is characterized by a higher mortality rate (30 %) than staphylococcal meningitis of other types of Staphylococcus (13 %) and mainly affects people over 25 years of age. With increasing age, the probability of death increases, and among people over 65 years of age, the mortality rate reaches 44 %.
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