If a vaccine works, then the vaccinators might conceivably set up what's known as ring vaccinations around Ebola hot spots. In this technique, medical workers simply vaccinate everybody in a ring, miles deep, around a focus of a virus.

Richard Preston
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More Quotes By Richard Preston
  1. Doctors generally consider smallpox to be the worst human disease. It is thought to have killed more people than any other infectious pathogen, including the Black Death of the Middle Ages. Epidemiologists think that smallpox killed roughly one billion people during its last hundred years...

  2. We could eradicate smallpox from nature, but we could not uproot the virus from the human heart

  3. In a sense, the Earth is mounting an immune response against the human species. It is beginning to react to the human parasite, the flooding infection of people, the dead spots of the concrete all over the planet, the cancerous rot-outs in Europe, Japan and...

  4. The coast redwood is the tallest species of tree on earth. The tallest redwoods today are between 350 and close to 380 feet in height--thirty-five to thirty-eight stories tall. The crown of a tree is its radiant array of limbs and branches, covered with leaves....

  5. ... tree has had a stroke, and its top dies. A redwood can deal with a stroke. It simply grows a new top in a few centuries.

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