Cross-Reactivity against Naja sumatrana (Black Spitting Cobra) Envenoming from the Haffkine Antivenom in a Mouse Model

Table 4

24-hour-survival of mice after tail-vein injection of Haffkine antivenom incubated with 2.5 LD₅₀  Naja naja venom.

Antivenom dose (mg)	Lived	Died	Mortality %
65.0	4	0	0.00
32.5	0	4	100.00
16.2	0	4	100.00