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Table 2 Virus isolation from tracheal swabs or from the kidneys of vaccinated chickens after challenge with the IBV CK/CH/JS/06II strain

From: Protection conferred by a recombinant Marek’s disease virus that expresses the spike protein from infectious bronchitis virus in specific pathogen-free chicken

Groups Isolation of virus
  Days post-virus challenge
  2* 4* 6* 8* 10* 12* 14**
rMDV-S1 0/10 a 10/10 a 4/10 a 1/10 a 0/10 a 0/10 a 2/19 a
CVI988/Rispens 0/10 a 10/10 a 10/10 b 6/10 b 3/10 b 0/10 a 14/14 b
PBS 0/10 a 10/10 a 10/10 b 6/10 b 4/10 b 0/10 a 14/14 b
  1. * Virus isolation from trachea swabs.
  2. ** Virus isolation from kidney.
  3. Virus isolation from the trachea or the kidney from the four experimental groups, as indicated with different lowercase letters, differed significantly based on χ2 analysis (p < 0.05).