CARD9 🧬 Understanding CARD9 and Its Role in Immune Health Most people know the immune system fights off viruses and bacteria…But when it comes to fungal defense , there’s a key player almost no one talks about: 👉 CARD9 This single gene helps determine how effectively your body responds to fungal challenges, including common ones like Candida . Let’s break it down in a clear, simple, root-cause way. 🔹 What Is CARD9? CARD9 is a gene that provides the blueprint for a protein