Research Topics
| P VillegasSummaryAffiliation: University of Georgia Country: USA Publications
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Detail Information
Publications
Viral diseases of the respiratory systemP Villegas
Department of Avian Medicine, University of Georgia, Athens 30602 4875, USA
Poult Sci 77:1143-5. 1998..In other countries, effective vaccines have been used to control Newcastle and avian influenza. Avian pneumovirus infection is also an emerging disease of chickens and turkeys...- Molecular characterization of seven field isolates of infectious bursal disease virus obtained from commercial broiler chickensA Banda
Department of Avian Medicine, College of Veterinary Medicine, University of Georgia, Athens 30602-4875, USA
Avian Dis 45:620-30. 2001.... - Protection against infectious bursal disease virulent challenge conferred by a recombinant avian adeno-associated virus vaccineF Perozo
Poultry Diagnostic and Research Center, University of Georgia, Athens, GA 30602, USA
Avian Dis 52:315-9. 2008..The use of rAAAV virions for gene delivery represents a novel approach to poultry vaccination... - Detection of Massachusetts and Arkansas serotypes of infectious bronchitis virus in broilersI R Alvarado
Department of Population Health, University of Georgia, Athens 30605, USA
Avian Dis 50:292-7. 2006..In general, the Mass strain was more frequently recovered from the tracheal and cecal tonsil tissues at earlier stages of infection and the Ark strain was recovered at later stages of infection... - Genomic identification and characterization of avian adenoviruses associated with inclusion body hepatitisJ El-Attrache
University of Georgia, Department of Avian Medicine, College of Veterinary Medicine, Athens 30602-4875, USA
Avian Dis 45:780-7. 2001..Complete mortality was observed within 72 hr postinoculation in specific-pathogen-free (SPF) chickens inoculated intramuscularly for all four avian adenovirus isolates... - Genetic characterization, pathogenicity, and protection studies with an avian adenovirus isolate associated with inclusion body hepatitisI R Alvarado
Department of Population Health, University of Georgia, Athens, GA 30602, USA
Avian Dis 51:27-32. 2007..We conclude that broiler-breeder progenies from 30- to 50-wk-old grandparents vaccinated with the AAV 8/11 vaccine were adequately protected against challenge with the AAV 8 and 11 serotypes and the Stanford strain... - Avian adeno-associated virus-based expression of Newcastle disease virus hemagglutinin-neuraminidase protein for poultry vaccinationF Perozo
Poultry Diagnostic and Research Center, University of Georgia, Athens, GA 30602, USA
Avian Dis 52:253-9. 2008..Protection up to 80% was observed in birds vaccinated in ovo and revaccinated at 7 days of age with the rAAAV-HN. The results demonstrate the feasibility of developing and using an AAAV-based gene delivery system for poultry vaccination... - Molecular characterization of avian infectious bronchitis virus strains isolated in Colombia during 2003I R Alvarado
Department of Avian Medicine, University of Georgia, Athens, GA 30602, USA
Avian Dis 49:494-9. 2005..Four unique genotype clusters containing isolates with indigenous genotypes were observed. One isolate was found to be the Connecticut genotype and three isolates were found to be the Massachusetts genotype... - Biological and phylogenetic characterization of virulent Newcastle disease virus circulating in MexicoF Perozo
University of Georgia, Poultry Diagnostic and Research Center, Athens, GA 30602, USA
Avian Dis 52:472-9. 2008..The assessment of the evolution of viruses from Mexico and other neighboring countries will aid in the U.S surveillance efforts for early detection of highly virulent NDV... - Evaluation of the protection conferred by commercial vaccines against the California 99 isolate of infectious bronchitis virusI R Alvarado
Department of Avian Medicine, University of Georgia, College of Veterinary Medicine, Athens, GA 30602-4875, USA
Avian Dis 47:1298-304. 2003..Based on these results, all chickens were protected against the California 99 isolate when the IBV Arkansas type was used as a vaccine... - Adenovirus pathogenicity in immature ostrichesJ El-Attrache
Department of Avian Medicine, College of Veterinary Medicine, University of Georgia, Athens 30602-4875, USA
Avian Dis 45:442-6. 2001..These viruses were identified by virus neutralization and further characterized by a pathogenicity trial in immature ostriches. The results showed that these isolates were noninfectious in ostrich chicks... - Molecular characterization of infectious bursal disease virus from commercial poultry in the United States and Latin AmericaA Banda
Department of Avian Medicine, College of Veterinary Medicine, University of Georgia, Athens, GA 30602-4875, USA
Avian Dis 47:87-95. 2003..IBDV strains detected from Brazil and Dominican Republic exhibited RFLP patterns identical to very virulent IBDV strains prevalent in several countries in Europe, Asia, and Africa... - Efficacy comparisons of disinfectants used by the commercial poultry industryM Ruano
Department of Avian Medicine, College of Veterinary Medicine, The University of Georgia, Athens 30602-4875, USA
Avian Dis 45:972-7. 2001..Evaluation of disinfectant efficacy against several microbials in the absence or presence of organic matter was highly practical, flexible, and reproducible... - Lack of interaction between avian leukosis virus subgroup J and fowl adenovirus (FAV) in FAV-antibody-positive chickensG Zavala
Department of Avian Medicine, The University of Georgia, Athens, GA 30602, USA
Avian Dis 46:979-84. 2002..With such criteria for evaluating possible interactions, we found no significant differences in the dually infected birds in comparison with chickens that received a monovalent challenge with either FAV or ALV-J...