A recent trichinosis epidemy involved around hundred patients in southern Paris suburbs; most frequent and marked clinical features were: facial and palpebral oedema, fever, bowel troubles (mostly constipation; diarrhea was seldom) and muscular tenderness. Most of the time eosinophiles cells and muscular enzymes were markedly raised. Trichinosis was proved by serological changes, with some delay. One muscular biopsy was found positive. Therapy consisted either in Thiabendazole (manufacturer's name: Mintezol) sometimes associated with prednisolone, or fluoromebendazole. There was no lethality.