Alex Olvera

Summary

Country: Spain

Publications

  1. ncbi Identification of potentially virulent strains of Haemophilus parasuis using a multiplex PCR for virulence-associated autotransporters (vtaA)
    Alex Olvera
    Centre de Recerca en Sanitat Animal CReSA, UAB IRTA, Campus de la Universitat Autonoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
    Vet J 191:213-8. 2012
  2. ncbi Applying phylogenetic analysis to viral livestock diseases: moving beyond molecular typing
    Alex Olvera
    Centre de Recerca en Sanitat Animal, UAB IRTA, Campus de Bellaterra Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
    Vet J 184:130-7. 2010
  3. ncbi Immunogenicity and protection against Haemophilus parasuis infection after vaccination with recombinant virulence associated trimeric autotransporters (VtaA)
    Alex Olvera
    Departament de Genetica i de Microbiologia, Universitat Autonoma de Barcelona, Barcelona, Spain
    Vaccine 29:2797-802. 2011
  4. ncbi Virulence-associated trimeric autotransporters of Haemophilus parasuis are antigenic proteins expressed in vivo
    Alex Olvera
    Centre de Recerca en Sanitat Animal CReSA, UAB IRTA, Campus de la Universitat Autònoma de Barcelona Edifici CReSA, 08193 Bellaterra, Barcelona, Spain
    Vet Res 41:26. 2010
  5. ncbi Trimeric autotransporters of Haemophilus parasuis: generation of an extensive passenger domain repertoire specific for pathogenic strains
    Sonia Pina
    Centre de Recerca en Sanitat Animal, UAB IRTA, Campus de la Universitat Autonoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
    J Bacteriol 191:576-87. 2009
  6. ncbi Detection of neutralizing antibodies in postweaning multisystemic wasting syndrome (PMWS)-affected and non-PMWS-affected pigs
    Maria Fort
    Centre de Recerca en Sanitat Animal CReSA, Esfera UAB, Universitat Autonoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
    Vet Microbiol 125:244-55. 2007
  7. ncbi Porcine circovirus type 2 (PCV2) Cap and Rep proteins are involved in the development of cell-mediated immunity upon PCV2 infection
    Maria Fort
    Centre de Recerca en Sanitat Animal CReSA, UAB IRTA, Campus de la Universitat Autonoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
    Vet Immunol Immunopathol 137:226-34. 2010
  8. ncbi Study of the population structure of Haemophilus parasuis by multilocus sequence typing
    Alex Olvera
    Centre de Recerca en Sanitat Animal, , 08193-Bellaterra, Barcelona, Spain
    Microbiology 152:3683-90. 2006
  9. ncbi Update on the diagnosis of Haemophilus parasuis infection in pigs and novel genotyping methods
    Alex Olvera
    Centre de Recerca en Sanitat Animal CReSA, Campus de Bellaterra, Universitat Autonoma de Barcelona, Barcelona, Spain
    Vet J 174:522-9. 2007
  10. ncbi Comparison of porcine circovirus type 2 load in serum quantified by a real time PCR in postweaning multisystemic wasting syndrome and porcine dermatitis and nephropathy syndrome naturally affected pigs
    Alex Olvera
    Centre de Recerca en Sanitat Animal, Campus Universitari de Bellaterra, , 08193 Bellaterra, Spain
    J Virol Methods 117:75-80. 2004

Detail Information

Publications11

  1. ncbi Identification of potentially virulent strains of Haemophilus parasuis using a multiplex PCR for virulence-associated autotransporters (vtaA)
    Alex Olvera
    Centre de Recerca en Sanitat Animal CReSA, UAB IRTA, Campus de la Universitat Autonoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
    Vet J 191:213-8. 2012
    ..When applied to field samples, the PCR confirmed a high prevalence of H. parasuis in conventionally farmed pigs and demonstrated that almost half of the animals carried potentially virulent strains...
  2. ncbi Applying phylogenetic analysis to viral livestock diseases: moving beyond molecular typing
    Alex Olvera
    Centre de Recerca en Sanitat Animal, UAB IRTA, Campus de Bellaterra Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
    Vet J 184:130-7. 2010
    ..Examples are given of current and future applications of phylogenetic reconstructions in viral livestock diseases...
  3. ncbi Immunogenicity and protection against Haemophilus parasuis infection after vaccination with recombinant virulence associated trimeric autotransporters (VtaA)
    Alex Olvera
    Departament de Genetica i de Microbiologia, Universitat Autonoma de Barcelona, Barcelona, Spain
    Vaccine 29:2797-802. 2011
    ..The partial protection achieved with the recombinant VtaA supports their potential as candidates to be included in future vaccine formulations against H. parasuis...
  4. ncbi Virulence-associated trimeric autotransporters of Haemophilus parasuis are antigenic proteins expressed in vivo
    Alex Olvera
    Centre de Recerca en Sanitat Animal CReSA, UAB IRTA, Campus de la Universitat Autònoma de Barcelona Edifici CReSA, 08193 Bellaterra, Barcelona, Spain
    Vet Res 41:26. 2010
    ..Taken together, these results indicate that VtaA are good candidate immunogens that could be used to improve H. parasuis vaccines. However, their capacity to confer protective immunity needs to be further studied...
  5. ncbi Trimeric autotransporters of Haemophilus parasuis: generation of an extensive passenger domain repertoire specific for pathogenic strains
    Sonia Pina
    Centre de Recerca en Sanitat Animal, UAB IRTA, Campus de la Universitat Autonoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
    J Bacteriol 191:576-87. 2009
    ..This study provides insights to help understand the tissue colonization and invasiveness characteristic of H. parasuis pathogenic strains...
  6. ncbi Detection of neutralizing antibodies in postweaning multisystemic wasting syndrome (PMWS)-affected and non-PMWS-affected pigs
    Maria Fort
    Centre de Recerca en Sanitat Animal CReSA, Esfera UAB, Universitat Autonoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
    Vet Microbiol 125:244-55. 2007
    ..The increase of NA coincided with the drop in viral load. Results from this work further support that PMWS-affected pigs show an impaired humoral immune response and, particularly, an inefficient NA response against PCV2...
  7. ncbi Porcine circovirus type 2 (PCV2) Cap and Rep proteins are involved in the development of cell-mediated immunity upon PCV2 infection
    Maria Fort
    Centre de Recerca en Sanitat Animal CReSA, UAB IRTA, Campus de la Universitat Autonoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
    Vet Immunol Immunopathol 137:226-34. 2010
    ....
  8. ncbi Study of the population structure of Haemophilus parasuis by multilocus sequence typing
    Alex Olvera
    Centre de Recerca en Sanitat Animal, , 08193-Bellaterra, Barcelona, Spain
    Microbiology 152:3683-90. 2006
    ..Interestingly, one branch included almost all isolates of the putative virulent UPGMA cluster...
  9. ncbi Update on the diagnosis of Haemophilus parasuis infection in pigs and novel genotyping methods
    Alex Olvera
    Centre de Recerca en Sanitat Animal CReSA, Campus de Bellaterra, Universitat Autonoma de Barcelona, Barcelona, Spain
    Vet J 174:522-9. 2007
    ..parasuis strains. The association between genotype and virulence in H. parasuis is challenging due to the lack of knowledge of the complete genomic sequence and virulence factors of this bacterium...
  10. ncbi Comparison of porcine circovirus type 2 load in serum quantified by a real time PCR in postweaning multisystemic wasting syndrome and porcine dermatitis and nephropathy syndrome naturally affected pigs
    Alex Olvera
    Centre de Recerca en Sanitat Animal, Campus Universitari de Bellaterra, , 08193 Bellaterra, Spain
    J Virol Methods 117:75-80. 2004
    ..PDNS affected animals had lower PCV2 loads. No significant differences in viral load were found between animals suffering from PDNS and animals with mild PMWS characteristic lesions, which were unaffected clinically...
  11. ncbi Genomic and antigenic characterization of monomeric autotransporters of Haemophilus parasuis: an ongoing process of reductive evolution
    Sonia Pina-Pedrero
    Centre de Recerca en Sanitat Animal CReSA, UAB IRTA, Campus de la Universitat Autonoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
    Microbiology 158:436-47. 2012
    ..These results indicate that BmaA proteins could be considered as immunogen candidates to improve H. parasuis vaccines. However, their capacity to confer protective immunity needs to be studied further...