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Faez Awad
University of Liverpool
VirologyVaccinationVirusBronchitisBiology
13Publications
7H-index
107Citations
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Publications 13
Newest
#1Christopher Ball (University of Liverpool)H-Index: 3
#2Faez Awad (University of Liverpool)H-Index: 7
Last. Kannan Ganapathy (University of Liverpool)H-Index: 13
view all 6 authors...
ABSTRACTAn investigation was undertaken of the extent of genetic variation occurring within infectious bronchitis virus (IBV) vaccine strains following vaccination of day-old broiler chicks. Chicks were divided into seven groups, with two groups receiving single Massachusetts (Mass) vaccinations while the other four were inoculated with combinations of different IBV serotypes; Mass, 793B, D274 and Arkansas (Ark). The remaining group was maintained as an unvaccinated control. Following vaccinatio...
1 CitationsSource
#1Faez Awad (University of Liverpool)H-Index: 7
#2Rajesh Chhabra (University of Liverpool)H-Index: 6
Last. Kannan Ganapathy (University of Liverpool)H-Index: 13
view all 8 authors...
Pathogenesis of an IS/885/00-like (IS/885) strain of variant infectious bronchitis virus (IBV) was examined in one day old specific pathogen free (SPF) and commercial broiler chicks. Chicks were humanely euthanized at 3, 6, 9, 12, 15, 21 and 28 days post infection (dpi) for necropsy examination, and tissues were collected for histopathology and virus detection by reverse transcription polymerase chain reaction (RT-PCR). Respiratory clinical signs and gross lesions consisting of tracheal caseous ...
5 CitationsSource
#1Faez AwadH-Index: 7
#2S. HuttonH-Index: 2
Last. Kannan GanapathyH-Index: 13
view all 5 authors...
ABSTRACTGroups of one-day-old broiler chicks were vaccinated via the oculo-nasal route with different live infectious bronchitis virus (IBV) vaccines: Massachusetts (Mass), 793B, D274 or Arkansas (Ark). Clinical signs and gross lesions were evaluated. Five chicks from each group were humanely killed at intervals and their tracheas collected for ciliary activity assessment and for the detection of CD4+, CD8+ and IgA-bearing B cells by immunohistochemistry (IHC). Blood samples were collected at in...
15 CitationsSource
#1Faez AwadH-Index: 7
#2S. HuttonH-Index: 2
Last. Kannan GanapathyH-Index: 13
view all 5 authors...
Abstract Groups of one-day-old broiler chicks were vaccinated via oculo-nasal route with different live infectious bronchitis virus (IBV) vaccines; Massachusetts (Mass), 793B, D274, or Arkansas (Ark). Clinical signs and gross lesions were evaluated. Five chicks from each group were humanely killed at intervals and their trachea collected for ciliary activity assessment and for the detection of CD4+, CD8+ and IgA-bearing B cells by immunohistochemistry (IHC). Blood samples were collected at inter...
1 Citations
#1Rajesh Chhabra (Lala Lajpat Rai University of Veterinary and Animal Sciences)H-Index: 6
#2Anne ForresterH-Index: 6
Last. Kannan GanapathyH-Index: 13
view all 6 authors...
The objectives of present study were to assess the mucosal, cellular and humoral immune responses induced by two different infectious bronchitis virus (IBV) vaccination regimes and their efficacy against challenge by a variant IBV Q1. Day-old broiler chicks were vaccinated with live H120 alone (Group I) or in combination with CR88 (Group II). Both groups were again vaccinated with CR88 at 14 days of age (doa). One group was kept as the control (Group III). A significant increase in lachrymal IgA...
12 CitationsSource
#1Faez Awad (University of Liverpool)H-Index: 7
#2Anne Forrester (University of Liverpool)H-Index: 6
Last. Ilaria CapuaH-Index: 1
view all 7 authors...
The ability of the infectious bronchitis H120 (a Massachusetts strain) and CR88 (a 793B strain) live attenuated vaccine viruses to protect from two Middle East infectious bronchitis virus isolates, IS/885/00-like (IS/885) and IS/1494/06-like (IS/1494) in broiler chicks was investigated. Day-old chicks were separated into three groups, (I) vaccinated with H120 at day-old followed by CR88 at 14 days-old, (II) vaccinated with H120 and CR88 simultaneously at day-old and again with CR88 at 14 days-ol...
8 CitationsSource
#1Faez Awad (University of Liverpool)H-Index: 7
#2Anne Forrester (University of Liverpool)H-Index: 6
Last. Kannan Ganapathy (University of Liverpool)H-Index: 13
view all 6 authors...
Abstract Interactions between live Newcastle disease virus (NDV), avian metapneumovirus (aMPV) and infectious bronchitis virus (IBV) vaccines following simultaneous vaccination of day old specific pathogen free (SPF) chicks were evaluated. The chicks were divided into eight groups: seven vaccinated against NDV, aMPV and IBV (single, dual or triple) and one unvaccinated as control. Haemagglutination inhibition (HI) NDV antibody titres were similar across all groups but were above protective titre...
11 CitationsSource
#1Rajesh ChhabraH-Index: 6
#2Anne ForresterH-Index: 6
view all 7 authors...
#1Faez Awad (University of Liverpool)H-Index: 7
#2Rajesh Chhabra (University of Liverpool)H-Index: 6
Last. Kannan Ganapathy (University of Liverpool)H-Index: 13
view all 4 authors...
Infectious bronchitis virus (IBV) is one of the foremost causes of economic loss within the poultry industry. IBV is a commonly occurring, economically significant pathogen of commercial chicken. Economic consequences to the poultry industry comprise mortality, growth retardation and high condemnation rates in meat-type birds. In addition, decreased egg production, reduced internal and external egg quality, and reduced hatchability have been documented in layers and breeders affecting the perfor...
12 CitationsSource
#1Faez Awad (University of Liverpool)H-Index: 7
#2Matthew Baylis (University of Liverpool)H-Index: 40
Last. Kannan Ganapathy (University of Liverpool)H-Index: 13
view all 3 authors...
Abstract A number of broiler flocks with respiratory disease and high mortality in five broiler farms in Libya were sampled for detection of infectious bronchitis virus (IBV). Twelve IBV strains from these farms were detected by reverse transcription polymerase chain reaction (RT-PCR) and differentiated by nucleotide sequencing of the hypervariable region of the S1 gene. A pair-wise comparison of the sequences showed two distinctive patterns. Those from farms 1, 2, 4 and 5, formed a separate clu...
23 CitationsSource
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