POPM 4040 Lecture Notes - Lecture 2: Case Fatality Rate, Miasma Theory, Vomiting

• School: University of Guelph
• Department: Population Medicine
• Course: POPM 4040
• Professor: Dr. Scott McEwen

Document Summary

Lecture 2 basic epidemiology for foodborne diseases epidemiology the systematic study and characterization of the frequency, distribution and determinants of health and disease in populations. Cholera dr. john snow (1854) case = severe diarrhea and dehydration then death. Attack rate = exposed = those who ate the food ex. 4,260 students ate hamburgers (exposed), of these 480 students became ill with diarrhea attack rate = 480/4260 = 11% Measurement of disease frequency count number of cases ex. last weekend, 100 uog students had diarrhea (disease + total) morbidity -clinical illness or disease condition; must be described (ex. diarrhea or vomiting) mortality death ex. Can be the odds of having exposure and getting ill, or the odds of being ill and being exposed. Of eating chicken (e) if you had diarrhea (d) is: E - total odds = 90/10 = 9.