Outbreak

4. the time between exposure of a disease and when signs and symptoms show up
5. the changing of the structure of a gene
7. someone who shows signs of a disease
9. a state, period, or place of isolation in which people or animals that may have been exposed to infectious disease are placed
10. a person who has one copy of a mutated (changed) disease-causing gene but has no symptoms or mild symptoms

1. a widespread occurrence of an infectious disease in a community at a particular time
2. a blood serum containing antibodies against specific antigens, injected to treat or protect against specific diseases
3. transported by air
6. the number of people who been affected by the disease
8. the person identified as the first carrier of a disease