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Table 2 Average microscopic lesion scores of selected respiratory tract tissues collected from chB19-inoculated pigs at different timepoints post-inoculation and from negative control pigs

From: Infectivity and transmissibility of an avian H3N1 influenza virus in pigs

Tissue

Histopathological score*

1 dpi

2 dpi

3 dpi

4 dpi

5 dpi

6 dpi

Negative control

#1

#2

#3

#4

#5

#6

#7

#8

#9

#10

#11

#12

#13

#14

Nasal mucosa

0

1

1

0

0

1

0

0

1

0

1

0

1

1

Trachea

0

0

0

0

0

0

0

1

0

0

1

0

0

0

Right cardiac lung lobe

1

2

2

2

2

1

1

1

2

1

2

1

2

2

  1. *Score and observed pathology:
  2. 0—Normal tissue
  3. 1—Minimal inflammation, slight infiltrate, and edema.
  4. 2—Focal inflammation, slight cellular debris, edema, infiltrate.
  5. 3—Multifocal inflammation, mild necrosis and cellular debris, moderate edema, and infiltrate.
  6. 4—Diffuse inflammation, interstitial infiltrate, cellular debris, necrosis.
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Veterinary Research

ISSN: 1297-9716