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Table 2 Virucidal assay: effect of preincubation of N. latifolia extract with HSV-2

From: In vitro anti-Herpes simplex virus activity of crude extract of the roots of Nauclea latifolia Smith (Rubiaceae)

Incubation condition

Extracta

Virus titer (PFU)b

Temp (°C)

Duration (h)

  

37

0

-

5.56 × 105

37

0

+

3.52 × 105

37

2

-

5.29 × 104

37

2

+

3.42 × 104

4

2

-

4.88 × 105

4

2

+

6.03 × 105

  1. aConcentration: 33 μg/ml.
  2. bThe values are the means ± SD of data derived from three independent experiments performed in duplicate.