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human health&disease
Respiratory System
| Question | Answer |
|---|---|
| Infectivity | The proportion of persons exposed to an infectious agent who become infected by it. |
| Incubation period | The time elapsed between exposure to a pathogenic organism, |
| Virulence | The ability of any agent of infection to produce disease. It depends upon the ability of bacteria to adhere, colonize, invade, escape from immune response, production of toxins. |
| Attenuation | the alteration of virulence of a pathogenic microorganism by passage through another host species, or by serial passage in vitro,for decreasing the virulence of the organism for the native host |
| Incidence rate | is the number of new cases per population over a given |