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[The ts phenotype of reisolates from children inoculated with live cold-adapted influenza vaccine type A].

Identifieur interne : 002D75 ( Main/Exploration ); précédent : 002D74; suivant : 002D76

[The ts phenotype of reisolates from children inoculated with live cold-adapted influenza vaccine type A].

Auteurs : T E Medvedeva ; Iu R. Romanova ; M I Gushchina ; L G Rudenko ; Iu Z. Gendon ; G I Aleksandrova ; A I Klimov

Source :

RBID : pubmed:1697128

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English descriptors

Abstract

Using mutants of fowl plague virus (FRV) which have single temperature-sensitive (ts) mutations in some genes, an analysis was carried out on reisolates from children of 3-6 years, vaccinated with a monovaccine from recombinant strains of influenza type A virus. The recombinants were obtained by crossing of current epidemic strains of subtypes A (HINI) and a (H3N2) with the cold-adapted (XA) ts-donor of attenuation A/Leningrad/134/47/57 (H2N2) from which they, as a rule, inherited 5 ts-mutations in genes 1 (PB2), 2 (PB1), 5 (NP), 7 (M), and 8 (NS). All the reisolates were shown to retain the ts-phenotype. However, in the recombination test some reisolates (most frequently those isolated at late periods of vaccination infection) no ts-mutations could be found in 1-3 genes coding for proteins of the polymerase complex, less frequently for NP and NS proteins but not for M proteins.

PubMed: 1697128


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Le document en format XML

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<name sortKey="Gushchina, M I" sort="Gushchina, M I" uniqKey="Gushchina M" first="M I" last="Gushchina">M I Gushchina</name>
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<name sortKey="Rudenko, L G" sort="Rudenko, L G" uniqKey="Rudenko L" first="L G" last="Rudenko">L G Rudenko</name>
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<term>Antigens, Viral (analysis)</term>
<term>Antigens, Viral (genetics)</term>
<term>Child</term>
<term>Child, Preschool</term>
<term>Cold Temperature</term>
<term>Epitopes (analysis)</term>
<term>Epitopes (genetics)</term>
<term>Genes, Viral (genetics)</term>
<term>Humans</term>
<term>Influenza A virus (genetics)</term>
<term>Influenza A virus (immunology)</term>
<term>Influenza A virus (isolation & purification)</term>
<term>Influenza Vaccines (administration & dosage)</term>
<term>Influenza Vaccines (genetics)</term>
<term>Influenza Vaccines (immunology)</term>
<term>Mutation</term>
<term>Phenotype</term>
<term>Recombination, Genetic (genetics)</term>
<term>Serial Passage</term>
<term>Temperature</term>
<term>Time Factors</term>
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<term>Antigènes viraux (analyse)</term>
<term>Antigènes viraux (génétique)</term>
<term>Basse température</term>
<term>Enfant</term>
<term>Enfant d'âge préscolaire</term>
<term>Facteurs temps</term>
<term>Gènes viraux (génétique)</term>
<term>Humains</term>
<term>Mutation</term>
<term>Passage en série</term>
<term>Phénotype</term>
<term>Recombinaison génétique (génétique)</term>
<term>Température</term>
<term>Vaccins antigrippaux (administration et posologie)</term>
<term>Vaccins antigrippaux (génétique)</term>
<term>Vaccins antigrippaux (immunologie)</term>
<term>Virus de la grippe A (génétique)</term>
<term>Virus de la grippe A (immunologie)</term>
<term>Virus de la grippe A (isolement et purification)</term>
<term>Épitopes (analyse)</term>
<term>Épitopes (génétique)</term>
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<term>Influenza Vaccines</term>
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<term>Antigens, Viral</term>
<term>Epitopes</term>
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<term>Antigens, Viral</term>
<term>Epitopes</term>
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<term>Épitopes</term>
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<term>Genes, Viral</term>
<term>Influenza A virus</term>
<term>Recombination, Genetic</term>
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<term>Antigènes viraux</term>
<term>Gènes viraux</term>
<term>Recombinaison génétique</term>
<term>Vaccins antigrippaux</term>
<term>Virus de la grippe A</term>
<term>Épitopes</term>
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<term>Vaccins antigrippaux</term>
<term>Virus de la grippe A</term>
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<term>Influenza A virus</term>
<term>Influenza Vaccines</term>
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<term>Influenza A virus</term>
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<term>Child, Preschool</term>
<term>Cold Temperature</term>
<term>Humans</term>
<term>Mutation</term>
<term>Phenotype</term>
<term>Serial Passage</term>
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<term>Facteurs temps</term>
<term>Humains</term>
<term>Mutation</term>
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<front>
<div type="abstract" xml:lang="en">Using mutants of fowl plague virus (FRV) which have single temperature-sensitive (ts) mutations in some genes, an analysis was carried out on reisolates from children of 3-6 years, vaccinated with a monovaccine from recombinant strains of influenza type A virus. The recombinants were obtained by crossing of current epidemic strains of subtypes A (HINI) and a (H3N2) with the cold-adapted (XA) ts-donor of attenuation A/Leningrad/134/47/57 (H2N2) from which they, as a rule, inherited 5 ts-mutations in genes 1 (PB2), 2 (PB1), 5 (NP), 7 (M), and 8 (NS). All the reisolates were shown to retain the ts-phenotype. However, in the recombination test some reisolates (most frequently those isolated at late periods of vaccination infection) no ts-mutations could be found in 1-3 genes coding for proteins of the polymerase complex, less frequently for NP and NS proteins but not for M proteins.</div>
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<name sortKey="Aleksandrova, G I" sort="Aleksandrova, G I" uniqKey="Aleksandrova G" first="G I" last="Aleksandrova">G I Aleksandrova</name>
<name sortKey="Gendon, Iu Z" sort="Gendon, Iu Z" uniqKey="Gendon I" first="Iu Z" last="Gendon">Iu Z. Gendon</name>
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<name sortKey="Medvedeva, T E" sort="Medvedeva, T E" uniqKey="Medvedeva T" first="T E" last="Medvedeva">T E Medvedeva</name>
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<name sortKey="Rudenko, L G" sort="Rudenko, L G" uniqKey="Rudenko L" first="L G" last="Rudenko">L G Rudenko</name>
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