This Week in Science

In this week's Science, an international research team reports the use of genomic data to track the course of the current — and seventh — cholera pandemic throughout heavily affected Africa. Using genomic data from 1,070 Vibrio cholerae O1 isolates across 45 African countries and over a 49-year period, the investigators show that past epidemics could be attributed to a single expanded lineage.

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US Attorney General Jeff Sessions is considering using DNA tests to determine relatedness between adult and child migrants, the Daily Caller reports.

Bloomberg reports that Brainstorm Cell Therapeutics plans to offer a treatment it is developing under the "right to try" law for hundreds of thousands of dollars.

In Nature this week: expansion of disease-resistance genes among long-lived oak trees, and more.

In a proof-of-concept study, researchers report being able to determine age from dried bloodstains, Discover's D-brief blog reports.