Article
Efficacy of Live Virus Vaccines Against Infectious Laryngotracheitis Assessed by Polymerase Chain Reaction–Restriction Fragment Length Polymorphism
1 Apr 2003
Abstract excerpt
The efficacy of four different commercial live vaccines (vaccines A, B, C, and D) against the infectious laryngotracheitis virus (ILTV) was assessed in specific-pathogen-free (SPF) chickens. SPF chickens were vaccinated intraocularly at 6 wk old with ILTV live vaccines and were challenged intratracheally with the N91B01 strain of virulent Korean ILTV 2 wk after vaccination. The immunity against ILTV live vaccines...
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