Answer Happy

D. Outbreak Investigation (10 pts) An outbreak of diarrheal disease occurred in among students and teachers who attended a college ball. . • Calculate for the attack rates of each food item for those who did and did not eat that food item. • Identify which food item deemed to have caused the outbreak of gastroenteritis. • Compute and interpret the relative risk of the food item identified to cause the outbreak. Ate the food item Did not ate the food item Food Sick Well Total AR in % Sick Well Total AR in % RR Rice 46 28 74 7 19 26 Chicken salad 46 40 86 6 8 14 41 34 75 12 13 25 32 27 58 19 22 41 Spaghetti Cabbage Potato-bitter gourd salad Mutton 51 34 85 2 13 15 6 2 8 47 45 92 Milk 22 10 32 31 37 68