Across
- 3. Evolutionary change within a population over a short period, perfectly demonstrated by antibiotic resistance.
- 5. Multiplication of large numbers of microbes circulating in the bloodstream.
- 7. A living organism, usually an insect, that transports a pathogen between hosts.
- 8. The early stage of mild symptom development before full-blown illness.
- 11. The symptom-free period where a pathogen multiplies after entering a host.
- 13. Long-term or even permanent tissue damage to the host following an infection.
- 15. The period of recovery as the immune system wins the battle and clears the infection.
Down
- 1. The natural environmental or biological home base of a pathogen.
- 2. A disease indigenous to animal populations that can be transmitted to humans.
- 4. An infection characterized by symptoms that develop, peak, and clear quickly.
- 6. An infectious disease transmissible from host to host.
- 9. A disease-causing microbe with specific adaptations to establish itself and cause damage.
- 10. The period of illness where the pathogen reaches peak toxicity and heavily disrupts homeostasis.
- 12. An asymptomatic individual who harbors and spreads a disease for months or years.
- 14. A dormant infection capable of hiding in host tissues and reactivating when immunity is low.