epidemiology

Question 1

epidemiology

Answer 1

study of disease in populations

Question 2

endemic

Answer 2

disease found in or restricted to particular region
Ro less than 1

Question 3

Ro

Answer 3

transmissibility rate

Question 4

Epidemic disease

Answer 4

a level of disease in a population significantly greater than usual
Ro is more than 1

Question 5

What ways can we assess the cause of a disease ?

Answer 5

-struc/shape of epidemic curve
-case-control studies - compare between diseased and non-diseased
-cohort studies - look at individuals that were or were not exposed to risk factor and see if get disease

Question 6

How can we interpret data collected from cohort and case-control studies ?

Answer 6

-odds ratio - OR more than 1 risk facto associated with disease , OR less than 1 not associated
-relative risk ratio -RR same as above - if RR more than 1 and vice versa

Question 7

How can we compare an unknown disease in humans and animals?

Answer 7

PCR fingerprinting
DNA sequencing
and then compare

Question 8

What to consider when controlling/preventing a disease ?

Answer 8

-host - vaccinate
-environment - movement restriction , quarantine , control vectors
-pathogen -drugs

Question 9

Elements of disease eradication

Answer 9

-pre-emptive - if exposed slaughtered
-blanket culling - on contagious premises culled
-stamping out - one of the above in combo with disinfection , burning carcases