“Before we could have four deaths [of children] in a week or 15 days, but now we record maybe one death,” says Blessings Juma, head of the pediatric ward at Mangochi District Hospital in Malawi. The health worker attributes this change to IMPALA, a monitoring system with artificial intelligence designed to detect early deterioration in hospitalized patients and thus reduce child mortality in low-resource clinics.

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Colombian President Gustavo Petro had planned to meet New York City Mayor Zohran Mamdani, a democratic socialist, during his trip to the United States this week. Petro traveled to the U.S. on Wednesday to assume the presidency of the United Nations Security Council. In the days that followed, he intended to hold a private meeting with Mamdani, a rising progressive figure who, like him, is a staunch opponent of Donald Trump. The photo of the two left-wing leaders carried great symbolic weight: for Mamdani it would have been his first meeting with a head of state; for Petro it would have meant sealing an alliance with Democrats on the eve of decisive elections for Colombia. The meeting never took place. The reason: the White House made sure of it.

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