You are called in to investigate a recent outbreak of a foodborne illness in a local community. There are 300 cases of reported hepatitis A and you suspect a local restaurant may be a possible source. You can obtain 600 people as controls for your case-control study of the illness and you create the 2 x 2 contingency table below: Exposure Ate at restaurant B Did not eat at restaurant B Total Hepatitis A + Hep A (Cases) 80 220 300 - Hep A (Controls) 60 560 600 Total 140 780 OR Odds X X X Calculate the odds of developing Hepatitis A while eating at restaurant B Calculate the odds of developing Hepatitis A while not eating at restaurant B Calculate the Odds Ratio (OR) for developing Hepatitis A while eating at Restaurant B as compared to not eating at restaurant B Do you believe restaurant B may be a potential source of the Hepatitis A infections