🦠📚 Communicable Disease Transmission: Sources & Reservoirs 🔍 Definition ✅ A communicable disease is an illness caused by an infectious agent or its toxins that can be transmitted from: 🧪💥 SOURCE vs. RESERVOIR – Important Concept! 🔹 Term 🧾 Definition 🏥 Source The immediate origin from where the infection is acquired 🧫 Reservoir The natural habitat where the organism lives, multiplies, and survives 🔁 Sometimes, source and reservoir are same