This Week in Science

An international team led by investigators at the University of Michigan Medical School reports on its study of how germ-free mice "are unable to eradicate Citrobacter rodentium, a model for human infections." These results, the team says in a paper published online in advance this week, suggest that "pathogen colonization is controlled by bacterial virulence and through competition with metabolically related commensals."

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The Jackson Laboratory has filed a complaint accusing Nanjing University of breeding and re-selling its mouse models, the Hartford Courant reports.

Oxford researchers are turning to virtual reality to visualize genes and regulatory elements, Phys.org says.

In Science this week: neutrophils rely on microRNA to protect against lung inflammation, and more.

China is moving forward with plans to sequence a million citizens, the Wall Street Journal reports.