Controlling the Spread of Infectious Disease (2.2.2)

What is epidemiology?
The study of the occurrence, distribution and control of disease within populations and the best way to manage them.
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What is an incidence rate?
Number of new cases of a disease in a year as a proportion of the population size.
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What is a prevalence rate?
The number of current cases as a porportion of the population size at that time.
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What is a mortality rate?
The number of deaths from a particular disease in a year as a proportion of the population.
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What is a notifiable disease?
A disease, which if a patient has it, the GP must inform their local authority.
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What are some notfiable diseases?
Polio, cholera, food poisoning, measles, whooping cough.
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What is the HPA?
The Health Protection Agency is an independent body in the UK that protects the health and wellbeing of the population.
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What is a major problem with viral diseases?
They can form new strains due to random mutations in their DNA.
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What research is done on influenza?
To predict which strains of flu are most likely to spread each year. Immunisation programmes are then put in place.
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What is the worry with avian flu virus?
The virus will mutate so that it spread between humans.
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Other cards in this set

Card 2

Front

What is an incidence rate?

Back

Number of new cases of a disease in a year as a proportion of the population size.

Card 3

Front

What is a prevalence rate?

Back

Preview of the front of card 3

Card 4

Front

What is a mortality rate?

Back

Preview of the front of card 4

Card 5

Front

What is a notifiable disease?

Back

Preview of the front of card 5
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