Ricin chain A. This vaccination is effective for several months due to the body's production of antibodies to the foreign protein. In 1978 Bulgarian defector Vladimir Kostov survived a ricin attack similar to the one on Georgi Markov, probably due to his body's production of antibodies. When a ricin-laced pellet was removed from the small of his back it was found that some of the original wax coating was still attached. For this reason only small amounts of ricin had leaked out of the pellet, producing some symptoms but allowing his body to develop immunity to further poisoning. The seeds of
London Waterloo station began to look for a terminus closer to Central London and the West End. An Act of Parliament was granted in 1845 to extend the line towards a site on York Road, close to Waterloo Bridge. The extension past Nine Elms involved demolishing 700 houses, and most of it was carried on a brick viaduct to minimise disruption. The longest bridge was long and took the line over Westminster Bridge Road. The approach to the new station carried four tracks, with the expectation that other companies would use it. The station was designed by William Tite and opened on 11