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A group of researchers report in PLoS Biology that Mycobacterium tuberculosis strains that affect people are more genetically diverse than had been assumed. They studied 7 megabase pairs of DNA sequence data from 108 strains of M. tuberculosis and attribute the diversity to human demographic and migratory events. The authors also say that current human population trends, global travel, urbanization, and population growth, may be contributing to the spread of drug-resistant tuberculosis

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Howard Hughes Medical Institute will be requiring its researchers to publish their work so it is immediately accessible to the public, ScienceInsider writes.

The Huffington Post reports that Francis Collins, the director of the US National Institutes of Health, has urged Americans to recommit to reason.

About 150 million rapid coronavirus tests purchased by the US federal government are to be distributed to nursing homes, colleges, and the states, according to the New York Times.

In Nature this week: multi-omic analysis of Alzheimer's disease brain samples, de novo assembly of a diploid potato, and more.