Astragalus polysaccharides enhance the immune response to avian infectious bronchitis virus vaccination in chickens

2017 ◽  
Vol 111 ◽  
pp. 81-85 ◽  
Author(s):  
Pengju Zhang ◽  
Jun Wang ◽  
Weixia Wang ◽  
Xiaohui Liu ◽  
Haiyan Liu ◽  
...  
Keyword(s):  
Immune Response ◽  
Infectious Bronchitis Virus ◽  
Avian Infectious Bronchitis Virus ◽  
Astragalus Polysaccharides ◽  
Infectious Bronchitis ◽  
Virus Vaccination

Comparative Evaluation of In Vitro and In Vivo Assays for the Detection of Avian Infectious Bronchitis Virus as a Contaminant of Live Poultry Vaccines

1998 ◽  
Vol 26 (5) ◽  
pp. 629-634
Author(s):  
Emiliana Falcone ◽  
Edoardo Vignolo ◽  
Livia Di Trani ◽  
Simona Puzelli ◽  
Maria Tollis
Keyword(s):  
Infectious Bronchitis Virus ◽  
Serological Response ◽  
Avian Infectious Bronchitis Virus ◽  
Animal Testing ◽  
Rt Pcr ◽  
Pcr Assay ◽  
In Vivo Test ◽  
Infectious Bronchitis

A reverse transcriptase polymerase chain reaction (RT-PCR) assay specific for identifying avian infectious bronchitis virus (IBV) in poultry vaccines, and the serological response to IBV induced by the inoculation of chicks with a Newcastle disease vaccine spiked with the Massachusetts strain of IBV, were compared for their ability to detect IBV as a contaminant of avian vaccines. The sensitivity of the IBV-RT-PCR assay provided results which were at least equivalent to the biological effect produced by the inoculation of chicks, allowing this assay to be considered a valid alternative to animal testing in the quality control of avian immunologicals. This procedure can easily be adapted to detect a number of contaminants for which the in vivo test still represents the only available method of detection.

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