In a hurricane-battered community in western Jamaica, nurse Joan Rosegreen sat down to take a young mother’s vitals – and was startled. “Her blood pressure was exorbitantly high,” she said of her patient, a mother of two young children who had given birth a few weeks ago. “This was blood pressure that could cause you to have a stroke.” Postpartum hypertension can be deadly, but the young woman was overwhelmed by the impacts of Hurricane Melissa, which roiled western Jamaica in October of 2025, and experiencing some cognitive symptoms. She didn’t want to be referred to a hospital. But Rosegreen, a long-time triage nurse at a university hospital in New York who volunteers with the JAHJAH Foundation in Jamaica, persuaded her. “She’s so young, and she has two children, and who will take care of them?” she said.…