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Cholera Bug Strengthens in Humans, Study Finds

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Times Staff and Wire Reports

Cholera bacteria appear to become even more infectious as they pass through the human intestinal tract, a finding that could help explain why the Third World disease spreads so quickly, researchers say. At the same time, the finding complicates efforts to develop a vaccine, since most research uses laboratory-grown strains that are apparently less infectious than those that have gone through a person, said Dr. Andrew Camilli of the Tufts University School of Medicine, who reported the finding in the Thursday issue of Nature.

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