Operation Cauldron was a secret biological warfare trial undertaken by the British government in 19521. Biological warfare (BW — known as a germ warfare, biological weapons and bioweaponry — is the use of any Pathogen ( Bacterium 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. Porton Down is a UK government and military Science park. It is situated slightly northeast of Porton near Salisbury in Wiltshire, The Royal Navy of the United Kingdom is the oldest of the British armed services (and is therefore known as the Senior Service) A biological agent is an Infectious disease or Toxin that can be used in Bioterrorism or Biological warfare. A pandemic (from Greek παν pan all + δήμος demos people is an Epidemic of Infectious disease that spreads through Lewis ( Leòdhas ʎɔːɣəs̪ ( Norse: Ljoðhús "home The Outer Hebrides, ( officially known for local government purposes by the Gaelic name Na h-Eileanan Siar) comprise an island 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. Yersinia pestis (formerly Pasteurella pestis) is a Gram-negative rod-shaped Bacterium belonging to the family Iceland, officially the Republic of Iceland ( ( Ísland or Lýðveldið Ísland ( 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. Sir Winston Leonard Spencer-Churchill, KG, OM, CH, TD, FRS, PC, PC (Can ( 30 November 1874
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: