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Table 1 Comparison of SARS-CoV induced histologic changes in the lungs of aged and juvenile monkeys

From: Severe acute respiratory syndrome-coronavirus infection in aged nonhuman primates is associated with modulated pulmonary and systemic immune responses

 

Value

Group

No. of animals

Gradea

Venous thrombosis

Perivascular cuffing

Alveolitis

Interstitial pneumonia

Aged 5 d.p.i.

5

Severity

0

1.8

1.2

0.4

Incidence

0%

100%

80%

40%

Juvenile 5 d.p.i.

11

Severity

0.27

1.2

1

0.45

Incidence

18%

82%

73%

27%

Aged 10 d.p.i.

5

Severity

0

1.6

1.4

0.2

Incidence

0%

100%

80%

20%

Juvenile 10 d.p.i.

6

Severity

0.33

1.7

1.3

1.5

Incidence

17%

100%

100%

83%

Aged mock

3

Severity

0

0.33

0

0

Incidence

0%

33%

0%

0%

Juvenile mock

2

Severity

0

0

0

0

  

Incidence

0%

0%

0%

0%

  1. aSeverity is the average grade for the group (0 = normal, 1 = minimal, 2 = mild, 3 = moderate, 4 = marked); incidence is the percentage of the group affected.