Marcel, 4, was diagnosed with leukemia in January. He has a weakened immune system and cannot return home.

His parents have launched a fundraiser to cover the costs of his treatment. A network of solidarity has been woven around the family in Fay-les-Étangs, in Oise, France. The work could cost “several tens of thousands of euros.” The couple had already committed to a 20-year loan for this house, which represented “the project of a lifetime”