illness crossword

3. The identification of the nature of an illness or other problem by examination of the symptoms.
5. An epidemic of disease that has spread across a large region, for instance multiple continents or worldwide.
7. A common symptom of many infections, characterized by an elevated body temperature.
9. A physical or mental feature that indicates a disease.

1. A biological preparation that provides active acquired immunity to a particular infectious disease.
2. A condition or disease that is persistent or otherwise long-lasting in its effects.
4. Single-celled microorganisms that can cause disease, but many are beneficial.
6. The invasion of an organism's body tissues by disease-causing agents, their multiplication, and the reaction of host tissues to these organisms.
8. A microscopic infectious agent that replicates inside living cells.
10. A substance used for medical treatment, especially a drug.