PID Intro

1. smallest microorganism
4. general and unspecific signs
7. return to normalcy
10. normal inhabitant
11. a disorder of structure or functioning a host
12. signs and symptoms are more severe and specific
13. suspected pathogen can be isolated and grown in pure culture
14. a healthy subject infected with suspected pathogen must develop the same signs and symptoms of disease
16. ________ pathogen: must produce disease to transmit and survive
19. any organism that is invisible to the naked eye
21. _______ pathogen: transmitted to host from surrounding source (water, soil)
22. Study of the cause/origin of disease
23. suspected pathogen must be found in every case of disease and not found in healthy individuals

2. _______ pathogen: does not ordinarily cause disease but can under certain conditions
3. the invasion and multiplication of pathogens in an individual or population
5. largest microorganism
6. ________ pathogen: commonly found within indigenous microbiota and can cause disease in normal hosts with some regularity
8. caused by pathogenic microorganisms
9. Father of microbiology
15. number of pathogens and clinical signs begin to decline
17. The pathogen must be re-isolated from the new host
18. capable of causing disease
20. pathogen multiples without clinical signs