illness crossword

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Across
  1. 3. The identification of the nature of an illness or other problem by examination of the symptoms.
  2. 5. An epidemic of disease that has spread across a large region, for instance multiple continents or worldwide.
  3. 7. A common symptom of many infections, characterized by an elevated body temperature.
  4. 9. A physical or mental feature that indicates a disease.
Down
  1. 1. A biological preparation that provides active acquired immunity to a particular infectious disease.
  2. 2. A condition or disease that is persistent or otherwise long-lasting in its effects.
  3. 4. Single-celled microorganisms that can cause disease, but many are beneficial.
  4. 6. The invasion of an organism's body tissues by disease-causing agents, their multiplication, and the reaction of host tissues to these organisms.
  5. 8. A microscopic infectious agent that replicates inside living cells.
  6. 10. A substance used for medical treatment, especially a drug.