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© Perrine Bomme, Guillaume Duménil, Jean-Marc Panaud.
Coloured scanning electron micrograph (SEM) of Neisseria meningitidis on epithelial cells
Publication : Vaccine

High predicted strain coverage by the multicomponent meningococcal serogroup B vaccine (4CMenB) in Poland

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Vaccine - 11 Dec 2015

Waśko I, Hong E, De Paola R, Stella M, Moschioni M, Taha MK, Skoczyńska A

Link to Pubmed [PMID] – 26686998

Vaccine 2016 Jan;34(4):510-515

Neisseria meningitidis of serogroup B (MenB) is currently responsible for more than 70% of cases of invasive meningococcal disease (IMD) in Poland and Europe as a whole. The aim of this study was to estimate strain coverage of a multicomponent meningococcal serogroup B vaccine (4CMenB) in Poland; the meningococcal antigen typing system (MATS) was used to test a panel of 196 invasive MenB strains isolated in Poland in 2010 and 2011. The strains were also characterized by MLST and sequencing of porA, factor H-binding protein (fHbp), Neisserial heparin-binding antigen (nhba) and Neisserial adhesin A (nadA) genes. MATS and molecular data were analyzed independently and in combination. The MATS results predicted that 83.7% (95% CI: 78.6-91.0%) of isolates would be covered by the 4CMenB vaccine; 59.2% by one vaccine antigen, 19.9% by two and 4.6% by three antigens. Coverage by each antigen was as follows: fHbp 73.0% (95% CI: 68.9-77.5%), NHBA 28.6% (95% CI: 13.3-47.4%), NadA 1.0% (95% CI: 1.0-2.0%) and PorA 10.2%. Molecular analysis revealed that the most frequent clonal complexes (ccs) were cc32 (33.2%), cc18 (17.9%) and cc41/44 (15.8%) with estimated coverage of 98.5%, 88.6% and 93.5%, respectively. Consistent with findings for other European countries, our study predicts high coverage by the 4CMenB vaccine in Poland.

https://www.ncbi.nlm.nih.gov/pubmed/26686998