This Week in PLOS

Small molecule metabolites present in the blood may serve as useful biomarkers of disease progression and outcomes for those with dengue virus infections, according to a study in PLOS Neglected Tropical Diseases. Members of an international research team used hydrophilic interaction liquid chromatography to identify small molecule metabolites present in the blood serum of dozens of dengue-infected individuals in Nicaragua and Mexico.

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ScienceInsider reports that a new security policy at the US Food and Drug Administration may prevent foreign nationals from working there.

WBUR in Boston looks into Orig3n's genetic fitness assessments to find more research is needed. reports that getting a DNA profile removed from a law enforcement database can be tricky.

In PNAS this week: de novo mutations contribute to non-syndromic craniosynostosis, fungal tree of life, and more.