Epidemiology lecture

Question 1

Epidemiology is the study _______________________________________________________

Answer 1

of who gets diseases, where, when how; all disease progress steps

Question 2

Incidence is the ___________________________________________________

Answer 2

new cases on a given area in a given time period.

Question 3

Prevalence is the ______________________________

Answer 3

total # cases in an area/time.

Question 4

Epidemiological Studies

• Descriptive study (first kind)
  
  • Tabulate data (might and will include)
    
    • _____________________
    • _____________
• Try to determine index case ( ________________________________________________ )

Answer 4

1) Location/ time of cases.
2) Patient info.
3) Where is it coming from and who was the first

Question 5

Epidemiological Studies

• Analytical study ( second kind )
  
  • Looks for probable cause, mode of transmission, methods of transmission
  • Good when Koch’s postulates can’t be used. Ex.________________

Answer 5

1) HIV

Question 6

Epidemiological Studies

• Experimental study ( when you think you know what’s going on? )
  
  • ________________
  • ______________________

Answer 6

1) Test hypothesis
2) Apply Koch’s postulates

Question 7

____________________________ ( HAI )

• AKA _____________
• Exogenous = ___________________________________________
• Endogenous = ____________________________________________________ ( you get from yourself)
• Inatrogenic= ____________________
• Super infections – Ex. C. diff

Answer 7

1) Hospital Associated infections
2) nosocomial
3) pathogen acquired from healthcare env. (not washing hands)
4) normal microbiota that can be opportunistic and cause infections
5) medical procedure

Question 8

Endemic disease: _________________________________________________________

Sporadic: ________________________________________________________________

Epidemic: ________________________________________________________________

Pandemic: _______________________________________________________________

Answer 8

1) Occurs at a comstant rate in a given area (it’s what is expected)
2) Case pops every now and then; random; can be new.
3) More than the normal # in a given area/time
4) epidemic on multiple continents