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Bubonic Plague: The Black Death! Nightmare Plagues Series • Glossary Crossword Puzzle 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Across Down 1. a form of plague that occurs when plague bacteria settle in the lungs 3. the largest land mass of a country 5. a form of plague that occurs when plague bacteria affect the lymph nodes 6. small masses of tissue throughout the body that help fight diseases 7. the liquid in the mouths of humans and animals that helps them swallow and chew and protects teeth against decay 8. small insects that live in an animal’s fur 11. large, painful swellings under the skin; a symptom of bubonic plague 13. an outbreak of a disease that occurs over a huge area and affects a large number of people 14. spreading easily from one person to another 15. signs of a disease—often feelings of pain or discomfort 16. a live plant or animal that disease-causing bacteria grow on 1. the total number of people living in a place 2. a deadly disease spread by fleas and rodents such as rats 4. the group of organs in people or animals that help break down food so the body can use it for fuel 9. medicines used to stop the growth of disease-causing bacteria 10. separated from other people in order to prevent the spread of disease 11. a scientist who studies living things 12. a place where ships and unload goods Across 17. tiny living things that differ structurally from plants and animals; most bacteria are harmless, while about 100 types are known to cause disease 18. a sudden start of something, such as the spreading of a contagious disease 19. ancient devices used to hurl large rocks or other objects