Operation Cauldron
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Operation Cauldron was a secret biological warfare trial undertaken by the British government in 19521. Scientists from Porton Down and the Royal Navy were involved in releasing biological agents, including plague ("agent L") at sea off the coast of the Isle of Lewis in the Outer Hebrides and testing the effects of the agents on caged animals. In one test, a trawler sailed through a cloud of plague bacteria (Yersinia pestis) on its return from a fishing trip to the waters around Iceland, causing concern about a possible plague outbreak around its home port in north-west England2. This event was successfully covered up by Churchill's government; the trawler Carella was apparently kept under covert observation until the incubation period had elapsed, with a naval medical team ready, but none of the crew fell ill.
[edit] Notes
Note 1: Operation Cauldron was the code name for the series of trials
Note 2: This cover-up was recently the subject of a half hour BBC radio 4 programme and other press coverage:
- Matt Fletcher (researched), Jolyon Jenkins (presented and produced). (2005) Operation Cauldron [Documentary]. Bristol: BBC.
- Karin Goodwin (September 11, 2005). Trawler crew exposed to deadly plague test. The Sunday Times - Scotland. London: Times Newspapers Ltd. Retrieved on September 25, 2005.

