Lecture 3

Question 1

Epidemiology

Answer 1

• population level
• analysis and application in prevention and control

Question 2

ID in leading causes of disease

Answer 2

• flu decreased over years - vaccines
• HIV outbreak
• development of effective treatments

Question 3

Infectivity

Answer 3

proportion exposed who become infected

Question 4

Pathogenicity

Answer 4

proportion of infected who develop clinical symptoms

Question 5

Virulence

Answer 5

degree of pathology caused by the organism - proportion of severe cases

Question 6

P-value

Answer 6

how likely it is that the observed data occurred by chance

Question 7

Kawasaki disease

Answer 7

• systemic vasculitis
• presumed to be associated with infectious diseases
• thought to be associated with new haven coronavirus - bigger sample size proved no

Question 8

Diagnostics

Answer 8

• low cost, high accuracy, rapid turnaround time
• choice of population to screen is important for validation