Photo by David Manning/Athens Banner-Herald, via Associated Press - The role of the opossum in suppressing populations of ticks that carry Lyme disease is highlighted in a new study on the ways biodiversity discourages the spread of disease.

Biodiversity in ecosystems, the scientists report in the Thursday’s issue of the journal Nature, dampens a pathogen’s ability to spread among humans. A study by a group of biologists, ecologists and medical researchers casts new light on a phenomenon farmers have known for years: the less genetic variety in a crop or a herd, the greater the risk that disease will decimate it…(more) The Less Biodiversity, the More Disease – NYTimes.com.

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