This document discusses various diseases like chicken pox, colds, polio, smallpox, tuberculosis, and their causes such as viruses and bacteria. It also mentions vaccines, which are medications that help prevent these diseases, as well as macrophages, which are immune cells that help fight infection.

1. Vaccine
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2. Chicken Pox
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3. Medicine
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4. Bacteria
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5. Virus
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6. Colds
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7. Polio
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8. Small Pox
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9. Tuberculosis
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10. Macrophage
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