The horse-based antivenom method takes 12 to 18 months per cycle, needs a central facility, depends on cold chain, and fails at the last mile to rural clinics. Every step has a failure mode.
1894
131 YEARS · NO FUNDAMENTAL CHANGE
2025
Harvest venom
~30 MIN
venom
Inject horse
ESCALATING DOSE
weeks
Immunize
12–18 MONTHS
blood
Draw blood
FROM HORSE
tubes
Centrifuge
SEPARATE SERUM
serum
Refrigerate
2–8 °C CLINIC
antivenom
Administer
TO PATIENT
Where it breaks
Harvest
Dangerous on both ends. Handling injures and kills snakes. Handlers get bitten, envenomated, sometimes maimed. Every cycle costs.
Immunize
Horses take escalating venom injections for 12 to 18 months. They suffer through every cycle. Slow, and cruel.
Cold chain
Requires 2 to 8 °C from lab to clinic. Breaks in rural distribution. Unusable antivenom.
Last mile
Fails to reach the clinics where most bites happen. The supply never arrives in time.