• Publications
  • Influence
Differentiation of infectious bronchitis virus serotypes using polymerase chain reaction and restriction fragment length polymorphism analysis.
TLDR
The results using the PCR and RFLP analysis agreed with the serotype for traditional and variant IBV viruses as determined by the VN test. Expand
Serotype identification of avian infectious bronchitis virus by RT-PCR of the peplomer (S-1) gene.
TLDR
The use of serotype-specific primers in RT-PCR provides a rapid and accurate means of identifying IBV. Expand
Development and use of the H strain of avian infectious bronchitis virus from the Netherlands as a vaccine: a review
TLDR
The original studies to isolate and attenuate the H strain by serial embryo passage are documents, and the early studies to demonstrate its efficacy in laboratory studies and under field conditions are described. Expand
Emergence of subtype strains of the Arkansas serotype of infectious bronchitis virus in Delmarva broiler chickens.
TLDR
Antigenic (VN) comparisons and S-1 gene analysis confirmed that the five RT-PCR Ark-positive field isolates were of the Ark serotype but also revealed that the viruses could be readily distinguished from Ark reference strains. Expand
S1 gene sequence analysis of a nephropathogenic strain of avian infectious bronchitis virus in Egypt
TLDR
Periodical evaluation of cross-protective capabilities of IBV vaccine(s) versus recently recovered field isolates should be performed to ensure optimum control ofIBV. Expand
Protection of chickens from Newcastle and Marek's diseases with a recombinant herpesvirus of turkeys vaccine expressing the Newcastle disease virus fusion protein.
TLDR
Recombinant HVT vaccines and the parent HVT strain provided similar levels of protection to chickens challenged with the very virulent RB1B strain of Marek's disease virus, indicating that insertion of foreign sequences into the HVT genome did not compromise the ability of HVT to protect against Marek’s disease. Expand
Impacts of Poultry House Environment on Poultry Litter Bacterial Community Composition
TLDR
Overall, the poultry house environment appeared to substantially impact the composition of litter bacterial communities and may play a key role in the emergence of food-borne pathogens. Expand
Infectious bronchitis virus S1 gene sequence comparison is a better predictor of challenge of immunity in chickens than serotyping by virus neutralization
TLDR
Five strains of infectious bronchitis virus isolated from commercial chickens from the state of Pennsylvania, USA during the years 1998 and 1999 were studied and indicated partial S1 sequence identity values were more strongly correlated with protective relatedness values and than antigenic relatednessvalues. Expand
Nephropathogenic Infectious Bronchitis in Pennsylvania Chickens 1997–2000
TLDR
The NIB outbreaks were associated with two unique genotypes, PA/Wolgemuth/98 and PA/171/99, which were unrelated to previously recognized endemic strains in Pennsylvania and were also dissimilar to each other. Expand
Variant serotypes of infectious bronchitis virus isolated from commercial layer and broiler chickens.
TLDR
Cross-protection studies in specific-pathogen-free chickens indicated that vaccines containing the Holland, L-1, or Connaught strains of Massachusetts (Mass) combined with Arkansas produced a broader spectrum of immunity against challenge with the layer variants than Mass (Holland) alone or Mass (L-1) + Connecticut. Expand
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