Table 2.
Immunoreactivity of Naja kaouthia Monovalent Antivenom (NkMAV) toward N. sumatrana venoms from different geographical locales.
| Venom | NkMAV | |
|---|---|---|
| EC50 a (µg/mL) | Absmax b | |
| Naja sumatrana (Negeri Sembilan) | 9.64 ± 1.83 | 1.82 ± 0.15 |
| Naja sumatrana (Penang) | 8.20 ± 0.71 | 2.19 ± 0.12 |
| Naja sumatrana (Southern Thailand) | 6.34 ± 1.02 | 2.10 ± 0.11 |
| Naja sumatrana (Sumatra) | 4.06 ± 0.56 | 2.20 ± 0.07 |
| Naja kaouthia (Thailand) | 2.04 ± 0.32 | 2.40 ± 0.03 |
Values are expressed as mean ± S.E.M. of triplicates. NkMAV concentration = 42.99 ± 1.02 mg/mL. a EC50 (half-maximal effective concentration), defined as antivenom dose at which half-maximal binding occurred. b Absmax (maximal absorbance), defined as maximal absorbance value at the highest concentration of antivenom.