Table 1 Severity of USUV-associated lesions in the main target organs

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

 

Afr3

Eu3

 

BB1

BB2

BB4

BB3

BB5

BB6

Encephalitis

1

1

1

0

0

0

Neuronal necrosis

2

2

2

1

1

1

Hepatitis

1

0

2

1

0

2

Liver necrosis

1

2

2

1

0

1

Splenitis

1

2

2

1

1

1

Spleen necrosis

2

3

3

2

2

1

Myocarditis

0

0

0

0

0

0

Heart necrosis

0

0

0

0

0

0

Pneumonia

1

1

1

1

1

0

  1. Histopathological lesions in main target organs were graded as follows, 0 = normal tissue; 1 = mild (<20% of tissue affected); 2 = moderate (20–60% of tissue affected); 3 = severe (>60% of tissue affected), in all blackbirds (BB) infected with Afr3 (BB1, BB2, and BB4), Eu3 (BB3, BB5, and BB6).
Back to article page