This Week in PLOS

In PLOS Medicine, researchers from the US and Finland describe blood transcriptional signatures corresponding to respiratory syncytial virus infection and severity in infants. The expression patterns — identified using array-based analyses on blood samples from groups of American and Finnish infants with RSV — appear capable of distinguishing RSV from other forms of lower respiratory tract infection and finding those at risk of developing severe RSV infections.

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Berkeley researchers have engineered yeast to make the molecule behind the hoppy taste of beer, Quartz reports.

King's College London researchers examine the influence of school type and genetics on academic achievement.

FiveThirtyEight writes that most who take a direct-to-consumer BRCA1/2 genetic test won't learn much from it.

In Science this week: early life experience influence somatic variation in the genome, and more.