ALV-J viremia and viral cloacal shedding in the infected chickens. The red, green, blue, and purple curves or spots represent the CIAV, ALV-J, CIAV+ALV-J, and control groups, respectively. (A) Comparison of the ALV-J viral positive rates in plasma from chickens in CIAV, ALV-J, CIAV+ALV-J, and control groups at different time points, determined by IFA. (B) Comparison of the positive rates for P27 antigen of ALV in cloacal swab from chickens in CIAV, ALV-J, CIAV+ALV-J, and control groups at different time points, determined by ELISA. (C) Comparison of P27 antigen levels of ALV in cloacal swab from chickens in CIAV, ALV-J, CIAV+ALV-J, and control groups at different time points, determined by ELISA. Abbreviations: ALV-J, J avian leukosis virus; CIAV, chicken infectious anemia virus.