Which of the answer sets below correctly classifies each of the following as (A) common
source epidemic, (B) propagated epidemic, or (C) mixed epidemic?
__Shigellosis occurred among persons attending a musical festival. Over the next few weeks,
additional cases spread by person-to-person transmission from festival attendees.
__Influenza A virus subtype H1N1 pandemic
__Outbreak of salmonella traced to turkey cooked and held at an improper temperature
__Outbreak of hepatitis B spread by personal contact
__Episodic cases of Legionnaires’ disease in hospitalized patients traced to showers & water
supply
a. C, B, A, B, A
b. C, B, B, B, A
c. B, A, B, C, B
d. C, B, A, A, A