VENOMOUS SNAKES

Scientists create antivenom using blood of man bitten by snakes hundreds of times

Over a period of nearly 18 years, the donor, Timothy Friede, exposed himself to 856 self-immunisations, including snake bites and doses of venoms of 16 lethal snake species, enough to "kill a horse", said first author Jacob Glanville, CEO of Centivax, Inc., a US-based vaccine developer.