Question

Time Remaining: 2:11:57 Part 8 of 24-8 AR calc Question 8 of 27 1 Points An outbreak of salmonellosis occurred after an epidemiology department luncheon, which was attended by 485 faculty and staff. Assume everyone ate the same food items. Sixty-five people had fever and diarrhea, with five of these people severely affected. Subsequent laboratory tests on everyone who attended the luncheon revealed an additional 72 cases. The attack rate of salmonellosis was: B. 28.2% C. 3.6% D. 7.6% E. 13.4% Reset Selection Mark for Review This? OLL

Answer 1

Attack rate =

Number of people who suffered from the attack/ Total number of people at risk x 100

= 137/ 485 x 100

= 28.24%

Option B is the correct answer.