May 22, 2026, is World Eosinophilic Esophagitis (EoE) Day.More than 470,000 people in the United States are living with eosinophilic esophagitis (EoE), a condition that was once considered rare but has gotten more and more common over the last two decades.Knowing what EoE is can help you figure out whether it may be affecting you.What is eosinophilic esophagitis (EoE)?EoE is a chronic (long-term) immune condition that affects the esophagus, the tube that connects your mouth to your stomach. EoE happens when a type of white blood cell called an eosinophil builds up in the lining of this tube....
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