TABLE 3.
Infection following preincubation of cells or virus for 1 h with SPs or control medium
| SP | Antiviral activity (% control activity) at the following times with the indicated dose (μg/ml)a:
|
|||||||
|---|---|---|---|---|---|---|---|---|
| Pretreatment of cells with no washing
|
Pretreatment of cells with washing
|
Pretreatment of virus, no dilution
|
Pretreatment of virus, 50× dilutionb
|
|||||
| 1 | 10 | 1 | 10 | 1 | 10 | 0.02 | 0.2 | |
| PRO 2000 | 0 | 0 | 46 + 2 | 22 ± 4 | 0 | 0 | 0 | 0 |
| PMHS | 3 ± 3 | 0 | 37 + 0 | 20 ± 4 | 0 | 0 | 1 ± 0.7 | 0 |
| PSS | 2 ± 3 | 0 | 69 ± 3 | 55 ± 2 | 7 ± 3 | 0 | 0 | 0 |
| CS | 7 ± 8 | 0 | 62 + 22 | 53 ± 1 | 15 ± 0 | 0 | 27 ± 4 | 16 ± 1.4 |
a
The results are presented as the means ± standard deviations of at least two independent experiments conducted in duplicate.
b
The doses are the final concentrations of the SP after dilution.