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Association of serum bactericidal antibody and opsonic antibody levels after Neisseria meningitidis serogroup C conjugate vaccine in Brazilian children and adolescents infected or not infected with HIV.

Association of serum bactericidal antibody and opsonic antibody levels after Neisseria meningitidis serogroup C conjugate vaccine in Brazilian children and adolescents infected or not infected with HIV.
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Pereira-Manfro WF, Alvino RM, Cruz AC, Silva GP, Castro RB, Ferreira B, Barreto DM, Frota AC, Hofer CB, Milagres LG,


Pereira-Manfro WF, Alvino RM, Cruz AC, Silva GP, Castro RB, Ferreira B, Barreto DM, Frota AC, Hofer CB, Milagres LG, (click to view)

Pereira-Manfro WF, Alvino RM, Cruz AC, Silva GP, Castro RB, Ferreira B, Barreto DM, Frota AC, Hofer CB, Milagres LG,

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Vaccine 2016 11 1234(50) 6116-6119 pii 10.1016/j.vaccine.2016.11.011

Abstract

Neisseria meningitidis serogroup C (MenC) is the main causative agent of meningitis in Brazil. HIV infection affects the quality of the immune system. HIV(+) children have an increased risk of infection to encapsulated bacteria such as N. meningitidis. We evaluated the opsonic antibody (OPA) levels and its correlation with serum bactericidal antibody (SBA) levels induced by one and two doses of a MenC conjugate vaccine in children and adolescents HIV(+) and HIV-exposed but uninfected children (HEU) group. Overall the data show the importance of two doses of vaccine for HIV(+) individuals. About 79% and 58% of HIV(+) patients showed SBA and OPA positive response after two doses of vaccine, respectively. For HEU group, 62% and 41% of patients showed SBA and OPA positive response after one dose of vaccine, respectively. A positive and significant association between SBA and OPA levels was seen after two doses of vaccine in HIV(+) patients.

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