For seven months babies have been dying in the same neonatal ward in Guadalajara, in the Mexican state of Jalisco. An outbreak of two bacteria in that intensive care area has deprived at least 18 mothers of their newborns. Some of those women have never met; others recognize each other because the other’s child slept in the incubator next to theirs. Together they have formed a WhatsApp group where they call themselves “Bereaved Moms.” The first recorded case dates back to March. As of today, they say, there are still four infected babies at the Gynecology-Obstetrics Hospital of the Western National Medical Center of the Mexican Social Security Institute (IMSS).

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Nature has perfected the art of creating living cells over billions of years. A team of researchers is now learning from that process and looking for ways to speed it up. For Massimo Vassalli, chair of bioengineering at the University of Glasgow, the goal is to understand not only how living tissues form, but how they can be recreated in the laboratory.

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