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
Clinical signs
Mortality
Gross lesions
Histopathological lesions
PI (%)
rMDV-S1
-
0% (0/20)
100
CVI988/Rispens
control
+
90% (18/20)
95% (19/20)
100% (20/20)