https://www.selleckchem.com/products/en460.html Invasive meningococcal disease (IMD) is an important public health concern. In developed countries, most IMD is caused by meningococcal serogroupB (MenB) and two protein-based MenB vaccines are currently available the four-component vaccine 4CMenB (Bexsero, GSK) and the bivalent vaccine MenB-FHbp (Trumenba, Pfizer). Genes encoding the 4CMenB vaccine antigens are also present in strains belonging to other meningococcal serogroups. To evaluate the potential of 4CMenB vaccination to protect adolescents against non-MenB IMD, we tested the bactericidal activity of sera from immunized adolescents on 147 (127 European and 20 Brazilian) non-MenB IMD isolates, with a serum bactericidal antibody assay using human complement (hSBA). Serum pools were prepared using samples from randomly selected participants in various clinical trials, pre- and post-vaccination 12 adolescents who received two doses of 4CMenB 2months apart, and 10 adolescents who received a single dose of a MenACWY conjugate vaccine (as positive control). 4CMenB pre-immune sera killed 7.5% of the 147 non-MenB isolates at hSBA titers ≥ 14. In total, 91 (61.9%) tested isolates were killed by post-dose2 pooled sera at hSBA titers ≥ 14, corresponding to 44/80 (55.0%) MenC, 26/35 (74.3%) MenW, and 21/32 (65.6%) MenY isolates killed. 4CMenB vaccination in adolescents induces bactericidal killing of non-MenB isolates, suggesting that mass vaccination could impact IMD due to serogroups other than MenB. 4CMenB vaccination in adolescents induces bactericidal killing of non-MenB isolates, suggesting that mass vaccination could impact IMD due to serogroups other than MenB.We investigated the contributions of multiple strands of factors-individual characteristics (struggling reader status, working memory, vocabulary, grammatical knowledge, knowledge-based inference, theory of mind, comprehension monitoring), a text feature (narrative vs. expository genre), and question types (l