|
Number of birds positive/number of birds examined per day
|
---|
|
2 dpi
|
4 dpi
|
5 dpi
|
6 dpi
|
7 dpi
|
12 dpi
|
---|
Tissue
|
HE1
|
IHC2
|
HE
|
IHC
|
HE
|
IHC
|
HE
|
IHC
|
HE
|
IHC
|
HE
|
IHC
|
---|
Thymus
|
0/4
|
2/4
|
0/5
|
0/5
|
0/2
|
0/2
|
0/2
|
0/2
|
0/1
|
0/1
|
0/2
|
0/2
|
Adrenal
|
1/4
|
1/4
|
0/5
|
0/5
|
0/2
|
0/2
|
1/2
|
1/2
|
0/1
|
0/1
|
0/2
|
0/2
|
Lung/Trachea
|
0/4
|
3/4
|
1/5
|
0/5
|
1/2
|
0/2
|
1/2
|
0/2
|
0/1
|
0/1
|
0/2
|
0/2
|
Air sacs
|
4/4
|
4/4
|
5/5
|
5/5
|
2/2
|
1/2
|
1/2
|
1/2
|
0/1
|
0/1
|
1/2
|
1/2
|
Pancreas
|
0/4
|
0/4
|
2/5
|
2/5
|
1/2
|
1/2
|
2/2
|
2/2
|
1/1
|
1/1
|
1/2
|
0/2
|
CNS
|
0/4
|
0/4
|
5/5
|
5/5
|
2/2
|
2/2
|
2/2
|
2/2
|
1/1
|
1/1
|
1/2
|
0/2
|
- 1HE: presence of histological lesions by examination of hematoxylin-and-eosin-stained tissue sections.
- 2IHC: presence of viral antigen by examination of tissue sections stained by immunohistochemical technique.