http://news.bbc.co.uk/1/hi/scotland/1457035.stm

Britain's 'Anthrax Island'


The island was quarantined for 48 years

Anthrax is one of the best known agents of biological warfare - and possibly one of the most feared.

The bacterium occurs naturally, in low levels, in some animals, but when it is inhaled by humans in the form of spores it is deadly.

The killing power of anthrax was demonstrated by British scientists during the Second World War when it was released on a tiny Scottish island to wipe out a flock of sheep.

The island, Gruinard, just off the mainland, in Gruinard Bay, half way between Ullapool and Gairloch in the Highlands, was so contaminated that it was deemed out-of-bounds for almost 50 years.

The 1942 test was sanctioned amid fears the Germans might attack the UK with biological or chemical weapons.

Anthrax can be contracted by skin contact, ingestion or inhalation, but it is through inhalation that it is at its most deadly and proves to be fatal in about 95% of cases, even with medical treatment.

Experts on biological weapons have suggested that 100kg of anthrax sprayed on a major city could kill more than 3m people.

When anthrax spores are inhaled death usually takes around seven days and will be as a result of symptoms like internal bleeding, blood poisoning or even meningitis.

Initial symptoms after inhalation might include mild fever, malaise, fatigue, coughing and, occasionally a feeling of pressure on the chest.

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(Thanks to the Forteana list)