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9 Cards in this Set
- Front
- Back
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What is an emerging disease?
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a previously unknown disease that suddenly appears in a population
a known disease that suddenly appears in a new population of a different species, age, population type or different part of the world |
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What is a re-emerging disease?
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known disease, previously on the decline that is becoming more common and will likely continue to do so
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How are diseases recognized?
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recognized as the increase in burden of disease
quantity - increase incidence of new endemic or trans boundry quality - increase morbidity, mortality, decrease productivity, detection and investigation response |
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What is the process of emergence?
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introduction of an agent into a new population
adoption, establishment and dissemination in new populations |
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How are people and animals exposed to disease?
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microbial traffic
movement of infectious agents among a population |
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How are diseases transmitted and established?
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requires a susceptible population
emergence and re-emergence occur only because the population is susceptible to the new pathogen and or no immunity in the population |
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What makes a disease likely to emerge?
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change in host population immunity and density
change in pathogen due to mutation, acquisition of virulence factors change in environment due to land cover, water treatment, globalization, commerce, travel, war, civil unrest , bio terrorism |
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Which taxonomic groups of pathogens are most likely to emerge?
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viruses
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How do you reduce the impact of emerging disease?
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prevention
surveillance identification prediction control communication |
