Georgi Markov people in the inner circles". Georgi Markov was assassinated on a London street via a micro-engineered pellet containing ricin, fired into his leg from an umbrella wielded by someone associated with the Bulgarian Secret Service. It has been speculated that they asked the KGB for help. Georgi Markov was born on March 1, 1929, in Knyazhevo, a Sofia neighbourhood. In 1946, he graduated from the "Gymnasium" (high school) and began university studies in industrial chemistry. Initially, Markov worked as a chemical engineer and a teacher in a technical school. At the age of 19 years he became ill with tuberculosis
Ricin would generate enough heat to denature it. Once deployed, an area contaminated with ricin remains dangerous until the bonds between chain A or B have been broken, a process that takes two or three days. In contrast, anthrax spores may remain lethal for decades. Jan van Aken, a German expert on biological weapons, explained in a report for The Sunshine Project that Al Qaeda’s experiments with ricin suggest their inability to produce botulinum or anthrax. A biopharmaceutical company called Soligenix, Inc. has licensed an anti-ricin vaccine called RiVax™ from Vitetta et al. at UT Southwestern. The vaccine is safe and