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Table 2 Anti-IBV activity of some plant extracts in Vero cell cultures

From: In vitro antiviral activity of fifteen plant extracts against avian infectious bronchitis virus

No.

Plant extract

CC50 (μg)a

EC50 (μg)b

SI

1.

Satureja montana

0.75

0.044

17.0

5.

Origanum vulgare

0.52

0.008

65.0

6.

Mentha piperita

0.27

0.004

67.5

8.

Melissa officinalis

0.59

0.015

39.3

11.

Thymus vulgaris

0.63

0.010

63.1

12.

Hyssopus officinalis

0.64

0.076

8.4

15.

Salvia officinalis

0.11

0.003

36.7

16.

Desmodium canadense

0.29

0.017

17.1

  1. aThe assay for determination of CC50 was performed in octuplicate for each extract
  2. bThe experiments for determination of EC50 were repeated independently twice, and a mean is presented