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Exam 4
Vocabulary Part I
| Term | Definition |
|---|---|
| Pathogenesis | The manner in which a disease develops |
| Competitive exclusion | Growth of some microbes inhibits the growth of other microbes |
| Symbiosis | Living together of two different organisms or populations |
| Probiotics | Microbes inoculated into a host to occupy niche & prevent pathogen growth |
| Symptoms | Change in body function felt by a patient as a result of disease |
| Signs | Change due to disease that a person can observe & measure |
| Syndrome | Specific group of signs/symptoms that accompany a disease |
| Communicability | Spread from one host to another |
| Contagious | Easily spread from one person to another |
| incidence | Fraction of population that contracts disease during particular period of time |
| Prevalence | Fraction of population having a "specific" disease at a given time |
| Sporadic | Occurs occasionally in a population |
| Endemic | Constantly present in a certain population |
| Pandemic | Epidemic that occurs world-wide |
| Acute | Rapid symptoms, short-lived |
| Chronic | Slow development, continue/recurs for long periods of time |
| Latent | Period of no symptoms/ pathogen inactive |
| Systemic | Deep within/ Throughout body |
| Sepsis | Presence of toxin/ Pathogenic organism in blood & tissue |
| Septicemia | Proliferation of pathogens in blood, accompanied by fever/ Sometimes causes liver damage |
| Bacteremia | Bacteria in blood |
| Toxemia | toxins in blood |
| Viremia | Viruses in blood |
| Primary Infection | Acute infection that causes initial illness |
| Secondary Infection | Infection caused opportunistic microbe after a primary infection has weaken defenses |
| Subclinical Infection | Infection not causing notable illness (in-apparent) |