Tim Friede has been bitten by snakes hundreds of times — often on purpose. Now scientists are studying his blood in hopes of creating a better treatment for snake bites.
Friede has long had a fascination with reptiles and other venomous creatures. He used to milk scorpions’ and spiders’ venom as a hobby and kept dozens of snakes at his Wisconsin home.
Hoping to protect himself from snake bites — and out of what he calls “simple curiosity” — he began injecting himself with small doses of snake venom and then slowly increased the amount to try to build up tolerance. He would then let snakes bite him.
Photo: Centivax via AP
“At first, it was very scary,” Friede said. “But the more you do it, the better you get at it, the more calm you become with it.”
While no doctor or emergency medical technician — or anyone, really — would ever suggest that is a remotely good idea, experts said his method tracks how the body works. When the immune system is exposed to the toxins in snake venom, it develops antibodies that can neutralize the poison. If it is a small amount of venom, the body can react before it is overwhelmed. If it is venom the body has seen before, it can react more quickly and handle larger exposures.
Friede has withstood snakebites and injections for nearly two decades and still has a refrigerator full of venom. In videos posted to his YouTube channel, he shows off swollen fang marks on his arms from black mamba, taipan and water cobra bites.
“I wanted to push the limits as close to death as possible to where I’m just basically teetering right there and then back off of it,” he said.
However, he also wanted to help. He e-mailed every scientist he could find, asking them to study the tolerance he had built up.
There is a need: About 110,000 people die from snakebite every year, according to the WHO.
Making antivenom is expensive and difficult. It is often created by injecting large mammals such as horses with venom and collecting the antibodies they produce. These antivenoms are usually only effective against specific snake species, and can sometimes produce bad reactions due to their non-human origins.
When Columbia University medical sciences professor Peter Kwong heard of Friede, he said: “Oh, wow, this is very unusual. We had a very special individual with amazing antibodies that he created over 18 years.”
In a study published Friday in the journal Cell, Kwong and collaborators shared what they were able to do with Friede’s unique blood: They identified two antibodies that neutralize venom from many different snake species with the aim of someday producing a treatment that could offer broad protection.
It is very early research — the antivenom was only tested in mice, and researchers are still years away from human trials. While their experimental treatment shows promise against the group of snakes that include mambas and cobras, it is not effective against vipers, which include snakes such as rattlers.
“Despite the promise, there is much work to do,” Liverpool School of Tropical Medicine snakebite researcher Nicholas Casewell wrote in an e-mail.
Friede’s journey has not been without its missteps. He said after one bad snake bite, he had to cut off part of his finger, and some particularly nasty cobra bites sent him to the hospital.
Friede is now employed by Centivax, a company trying to develop the treatment and that helped pay for the study.
He said he is excited that his 18-year odyssey could one day save lives from snakebite, but his message to those inspired to follow in his footsteps is simple: “Don’t do it.”
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