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News Release 12-061
Evolving to Fight Epidemics: Weakness Can Be an Advantage
Less resistance can sometimes be better than more--at least in a freshwater lake
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A Daphnia dentifera in the early stages of infection by a virulent yeast parasite.
Credit: Meghan Duffy
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Downing Lake, Ind., one of seven lakes studied in the infectious disease research.
Credit: David Civitello
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Six Daphnia dentifera individuals; upper right and center bottom, are only ones uninfected.
Credit: Meghan Duffy
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Two Daphnia dentifera individuals; one on the upper right is uninfected, lower left, infected.
Credit: Meghan Duffy
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A Daphnia dentifera almost completely infected with a virulent yeast parasite.
Credit: Meghan Duffy
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A healthy Daphnia dentifera individual. Gold and green ovals on her back are embryos.
Credit: Meghan Duffy
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The researchers' work is described in the March 30, 2012 issue of the journal Science.
Credit: Copyright AAAS 2012
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