Virus strain specific serum neutralizing antibodies in children and adolescents immunized with a Russian mumps vaccine

Postvaccination immunity was studied in the children and teenagers without a history of clinical mumps infection, who had been immunized with the Leningrad-3 mumps vaccine. The level of specific lgG in ELISA and that and spectrum of their neutralizing activity against a vaccine strain and three hete...

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Bibliographic Details
Published inVoprosy virusologiĭ Vol. 55; no. 6; p. 15
Main Authors Otrashevskaia, E V, Krasil'nikov, I V, Ignat'ev, G M
Format Journal Article
LanguageRussian
Published Russia (Federation) 01.11.2010
Subjects
Adolescent
Antibodies, Neutralizing - blood
Antibodies, Neutralizing - immunology
Antibodies, Viral - blood
Antibodies, Viral - immunology
Antibody Specificity
Child
Child, Preschool
Cross Reactions
Humans
Immunoglobulin G - blood
Immunoglobulin G - immunology
Mumps - blood
Mumps - immunology
Mumps - prevention & control
Mumps Vaccine - administration & dosage
Mumps Vaccine - immunology
Mumps virus - immunology
Russia
Vaccination
Russia
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Summary:Postvaccination immunity was studied in the children and teenagers without a history of clinical mumps infection, who had been immunized with the Leningrad-3 mumps vaccine. The level of specific lgG in ELISA and that and spectrum of their neutralizing activity against a vaccine strain and three heterologous mumps virus (MV) strains (genotypes A, C, and H) were measured. The investigation included 151 sera from the vaccinees aged 3 to 17 years, possessing the detectable specific IgG titers in ELISA and the detectable neutralizing titers against the vaccine strain. 97.4% of the vaccinees had neutralizing activity against 1-3 heterologous MV strains. A preponderance of neutralizing titers against heterologous MV strains by 1-log2 in some sera (6.5-32.5 depending on age) was most likely to suggest that the vaccinees' had been in contact with these virus strains in the past. In our investigation, a combination of positive IgG titers and neutralizing titers against the vaccine strain 2-log2 or higher provided the protection of the vaccinated children and teenagers against the symptomatic infection. There was a pronounced buster effect of the second immunization and a drop in the neutralizing activity of the sera from the vaccinated children and adolescents over time after the first and second immunization.
ISSN:0507-4088