Table 2 Amount of USUV antigen in tissues

From: Experimental Usutu virus infection in Eurasian blackbirds (Turdus merula)

 

Afr3

Eu3

 

BB1

BB2

BB4

BB3

BB5

BB6

Pallium

3

3

1

2

1

3

Cerebellum

3

3

1

2

1

2

Spinal cord

2

1

1

2

2

3

Ischiatic nerve

0

0

n.a.

0

0

0

Liver

0

0

3

1

1

0

Spleen

1

0

3

1

0

1

Heart

0

1

2

1

2

2

Kidney

2

0

3

2

1

2

Lung

1

1

3

2

2

2

Large Int

3

3

3

3

2

2

Small Int

3

n.a.

3

3

2

2

Proventriculus and gizzard

2

2

3

n.a.

1

2

Eye

n.a.

1

1

n.a.

1

1

Skin

0

0

3

2

1

1

  1. The amount of USUV antigen was assessed on IHC with a two-tier scoring system as follows, grade 0 = absence of antigen; grade 1 = low amount of antigen; grade 2 = moderate amount of antigen; grade 3 = high amount of antigen (n.a. not available), in all infected blackbirds, infected with USUV Afr3 (BB1, BB2, and BB4), USUV Eu3 (BB3, BB5, and BB6).
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