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Incidence of Garlic common latent virus in Argentina, and phylogenetic and recombination analyses of isolates PAB
Torrico,Ada Karina; Celli,Marcos Giovani; Conci,Luis Rogelio; Conci,Vilma Cecilia.
The objective of this work was to estimate the incidence and prevalence of Garlic common latent virus (GarCLV) in the main production regions of garlic (Allium sativum) in Argentina, and to perform phylogenetic and recombination analyses in isolates from these regions. Leaf samples (3,050) were taken from four garlic commercial types, in 13 departments of the four main garlic-producing provinces of Argentina, in a 1,175-ha sampling area. Virus infection was evaluated with DAS-Elisa test using specific antiserum, and the phylogenetic and recombination analyses were done with capsid protein (CP) nucleotide sequence of seven GarCLV isolates from the provinces. The incidence of GarCLV in the evaluated provinces varied between 6.7 and 22% of the samples,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Allium sativum; Carlavirus; GarCLV; Prevalence; Viral diversity.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015000500363
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Serotyping HIV-1 with V3 peptides: detection of high avidity antibodies presenting clade-specific reactivity BJMBR
Casseb,J.; Katzenstein,D.; Winters,M.; Brigido,L.F.M.; Duarte,A.J.S.; Hendry,R.M..
The main objective of the present study was to assess the specificity and sensitivity of a modified assay using short synthetic peptides of the V3 region of HIV-1 gp120, which is the main target for neutralizing antibodies. Results from an enzyme immunoassay (EIA) employing a panel of synthetic peptides of HIV-1 subtypes and using urea washes to detect high avidity antibodies (AAV3) were compared with those obtained by the heteroduplex mobility assay and DNA sequencing. The EIA correctly typed 100% of subtype B (sensitivity = 1.0; specificity = 0.95), 100% of HIV-1 E samples (sensitivity = 1.0; specificity = 1.0), and 95% of subtype C specimens (sensitivity = 0.95; specificity = 0.94). In contrast, only 50% of subtype A (sensitivity = 0.5; specificity =...
Tipo: Info:eu-repo/semantics/article Palavras-chave: HIV-1; Viral diversity; Serotypes; V3 serology.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000300013
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