The cholera strain that is devastating Haiti likely originated from Southeast Asia, reports researchers from Boston and Pacific Biosciences. In the New England Journal of Medicine, the researchers describe using PacBio's single-molecule real-time DNA sequencing method to distinguish the cholera strain circulating in Haiti from others found in Latin America and the US Gulf Coast.

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The UK's Human Fertility and Embryology Authority calls for consumer genetic testing companies to warn customers that testing could uncover family secrets, according to the Guardian.

The New York Times reports that United Nations delegates have been discussing how to govern the genetic resources of the deep sea.

Researchers have transplanted edited cells into mice that appear to combat cocaine addiction, New Scientist reports.

In PNAS this week: analysis of proteolytic enzymes secreted by circulating tumor cells, phylogenetic study of Fv1 evolution, and more.