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People are asked about their feelings towards an area's safety and cleanliness.

She added: "While the risk to livestock remains low, I urge all animal owners to ensure scrupulous cleanliness is in place and to report any signs of infection to the Animal Plant Health Agency immediately."

The old sanatoria in the Alps to which European TB patients lucky enough to have wealthy relatives might be sent focused on cleanliness, fresh air and sunlight, ample nutritious food and rest.

The department has advised the public to maintain the cleanliness of their surroundings, destroy potential mosquito breeding sites such as tyres, wear long-sleeved shirts and trousers and apply mosquito repellent.

The cleanliness and fluoridation of the water supply has dramatically reduced infectious disease and cavities, and has been heralded as one of the 20th century's greatest public health achievements.