Dinh Hien Mo was skimming social media on Sunday at her home in Central Vietnam when she stumbled on a post calling for aid to Cuba, where hunger has been spreading as inflation soars.

       She watched videos and read about how Cuba supported Vietnam during the wars of the 1960s and ‘70s, building hospitals and sending doctors, sugar and cattle. Inspired, she donated 500,000 Vietnamese dong, about $19, from the modest income she earns at her family’s grocery store.

       “I feel bad that people in Cuba are suffering from economic hardship,” she said. “They’re isolated by sanctions and their economy is cut off from the world — Vietnam used to be like that, but we opened up, and life here is much better.”

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