'Unparalleled' snake antivenom made from man bitten 200 times2 days ago Share Save James Gallagher • @JamesTGallagher Health and science correspondent Share SaveGetty Images A black mamba is arguably the world's deadliest snakeThe blood of a US man who deliberately injected himself with snake venom for nearly two decades has led to an "unparalleled" antivenom, say scientists. Current therapies have to match the specific species of venomous snake anyone has been bitten by. 'I'd love to get my hands on some of your blood'Antivenom is currently made by injecting small doses of snake venom into animals, such as horses. There is even wide variety within the same species – antivenom made from snakes in India is less effective against the same species in Sri Lanka. In experiments on mice, the cocktail meant the animals survived fatal doses from 13 of the 19 species of venomous snake.