This Week in PNAS

In the early, online edition of the Proceedings of the National Academy of Sciences, a team from Italy and the US describes patterns found in the genomes of symbiotic and free-living Polynucleobacter necessarius — a bacterial species expected to offer clues about processes that can contribute to genome reduction. By sequencing the genome of symbiotic P.

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This Week in PNAS

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In Science this week: measles virus nucleocapsid structure, and more.

African and US health officials work to establish an Africa-wide Centres for Disease Control and Prevention.

Nature has retracted a 2002 epigenetics paper for image manipulation.

The World Health Organization calls for the public release of clinical trial results within a year of the completion of data collection.