Volume 18, Number 12—December 2012
Research
Virulent Avian Infectious Bronchitis Virus, People’s Republic of China
Figure 3

Figure 3. . Seroconversion and percentage survival of chickens experimentally infected with infectious bronchitis virus (IBV), People’s Republic of China. A) Survival of chickens after inoculation with IBV YN strain. B) Detection of IBV antibodies by ELISA at 21 days postinoculation. Cutoff titer = 396.