An anti-toxin that protects against ricin poisoning is to move into production for the first time, after eight years of research.
It is the result of eight years of work by researchers at the Defence Science and Technology Laboratory (DSTL).
The anti-toxin can protect against three times the lethal dosage of ricin and can be administered to 24 hours after exposure.
According to security experts, ricin is one of the weapons which could be used in a bio-terror attack.
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